2nd International Conference on
Materials Science and Research

September 26-27, 2018 at Frankfurt, Germany

Program Schedule

  • Keynote Speaker

    Time:
    10:00-10:40

    Title

    Title: On the Way to Physically Correct Indentation Analysis

    Gerd Kaupp
    University of Oldenburg, Germany
    Biography
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    Biography

    Gerd Kaupp
    University of Oldenburg, Germany

    Dr. Gerd Kaupp studied chemistry at the University of Würzburg, Germany and was postdoc at Ames, Iowa, Lausanne, and Freiburg i. Br, from where he became associate professor and since 1982 full professor at the University of Oldenburg. He served as guest professor and is now retired and consulting. His expertise is in chemical kinetics, laser photochemistry, waste-free productions, solid-state chemistry, mechanochemistry, atomic force microscopy AFM, scanning near-field optical microscopy SNOM, indentation, standardization in nano-mechanics. He has been keynote speaker in these fields, published numerous scientific papers and books and is inventor of patents in solid-state and environmental chemistry.



    Abstract
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    Abstract

    Gerd Kaupp
    University of Oldenburg, Germany

    Common indentation analyses suffer from iterations, polynomials, and approximations, in order to get along with an incorrect description of the force-depth curve. There is not the "quadratic relation", also assumed in FE-simulations, but a simple undeniable one-page physical deduction proves the empirically found FN = k h3/2-relation. It opposes counter-physical ISO 14577 that violates the first energy law with faulty hardness and elastic modulus (values and dimension, also falsely claiming Young's modulus!) and cannot detect phase transition under load. All types of materials should now be characterized with Hphys (0.8 k : penetration resistance from >3 or >4 nines regression correlation) with the correct dimension (it is the first physically defined hardness ever) and with the not iterated indentation modulus Er-phys. The correct mathematically clear physics offers unexpected applications of nano- and macro-indentation data. Some of these are detection of surface effects and phase changes under load, including their transformation energy and activation energy, all with simple algebra. It includes the determination of correct adsorption energies and should correct all mechanical properties that are still derived from the faulty "HISO" and "EISO" suppositions. This adds increased precision. Clearly, daily life is still at risk as long as counter-physical ISO Standards are not changed: When suppressing basic physical laws, materials fail despite security by not properly fitting together, or because industrial indentations do not exclude multiple phase-transitions, creating interfaces as nucleation sites for cracks that might end catastrophically. The correct physics is of course promising. It requires acknowledgement and further development.

    Keynote Speaker

    Time:
    10:55-11:35

    Title

    Title: The Importance of Materials Science Education in Mechanical Engineering

    Ozer A Arnas
    United States Military Academy at West Point, USA
    Biography
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    Biography

    Ozer A Arnas
    United States Military Academy at West Point, USA

    Dr. Ozer Arnas was educated at Robert College-Istanbul, BSME 1958, Duke University, MSME and North Carolina State University, PhD. He started his academic career at Louisiana State University, 1962, where he is now a Professor Emeritus, 1985. He also taught at the California State University System, 1986-1996. He spent his sabbatical leaves at BogaziciUniversity-Istanbul, University of Liege-Belgium, Eindhoven University of Technology-the Netherlands, University of Padova-Italy, University of Sao Paolo-Brazil and Abo Akademi-Turku, Finland. He has been a Professor at the United States Military Academy at West Point-New York since 1998. He is the author/co-author of over one hundred eighty publications and has a US Patent.



    Abstract
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    Abstract

    Ozer A Arnas
    United States Military Academy at West Point, USA

    Mechanical Engineering requires a robust course(s) in Materials Science since it deals with energy as well as mechanical systems. As we had demonstrated in early sixties the lack of appropriate materials for power generation in space, current energy systems also lack the most appropriate materials for acceptable levels of efficiency, such as in gas and steam turbine blades, photovoltaics and fuel cells. With the development of nano-mechanics, we had hoped that materials on demand and in the form that they could be used would have been developed. So far this has not proven to be the case. As a mechanical engineer, we have very specific requirements to accomplish our design and products. The availability of such materials is very important for the user of the design. These facts make it very desirable to have the appropriate lectures, courses and textbooks for the undergraduate student. We have to make sure that we can excite them so that they pursue graduate work where they design, build and create new systems. In order to achieve this excitement in the student, we must use the best available textbooks, create experiences in well-developed laboratories and permit creativity even if the initial try fails. We must teach them to learn by their mistakes and support them in their search for creative ways of doing designs. In all institutions that I have been associated with, I have pushed for as many hours as the curriculum would permit to add course(s) in materials science. It does not take much to appreciate the fact that without the appropriate materials, our designs are also not very good. If we could just have the materials for gas-steam turbine blades that could withstand ten-twenty-thirty degrees more, the overall efficiencies will increase thus preserving the fuel resources. For future generations this is a must. Investment in research and development is a must. Government spending on research is a must. Creative design of products is a must. Meaningful teaching/research is a must. We do have challenges ahead of us!

    Sessions:
    Materials Science and Engineering & Materials for Nuclear Energy Applications and Aerospace Applications & Advanced and Functional Materials (Biomaterials, Nanomaterials, etc)

    Time:
    11:35-12:00

    Title: Development of Organic Multifunctional Spin Systems

    Shinichi Nakatsuji
    University of Hyogo, Japan

    Biography
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    Biography

    Shinichi Nakatsuji
    University of Hyogo, Japan

    Dr. Shin’ichi Nakatsuji obtained a PhD from Osaka University and after studied as a JSPS postdoctoral fellow at the same university, he joined the Faculty of Pharmaceutical Sciences, Nagasaki University, as an assistant professor. He studied one year at the TH (now TU) Darmstadt as an Alexander von Humboldt fellow. In 1990 he moved to the newly founded Faculty of Science at Himeji Institute of Technology (now University of Hyogo) and was appointed as a professor in 1998. He served as the dean of School of Science as well as a councillor of the university and is currently a professor emeritus. He is the author or one of the co-authors of 9 books, 15 reviews and book chapters as well as 12 patents. He has published over 220 scientific papers and has been awarded in 2008 the distinction of Doctor Honoris Causa from Technical University of Iasi in Romania.



    Abstract
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    Abstract

    Shinichi Nakatsuji
    University of Hyogo, Japan

    Considerable attention has been paid during past decades and is still being paid to the development of functional organic systems with multi-properties such as organic magnetic conductors, photochromic magnets, magnetic liquid crystals and so forth and we have been interested in developing organic spin systems combined with conductivity, photochromism, thermochromism, liquid crystalline, or rechargeable battery properties. In this paper we would like to report some of our recent results on the development of organic multifunctional spin systems toward molecular spin devices. A naphthalenediimide derivative carrying TEMPO radical and azobenzene chromophore was found to show photo-responsive magnetic as well as FET properties upon illumination and multi-step charge-discharge properties were observed in some nitroxide-carrying ferrocene derivatives or disulfide compounds. Some radical salts with chromophore and anchor units were proved to work as colored compatibilizers with a squarium dye in the photovoltaic properties. These results will be presented and discussed.

    Time:
    12:00-12:25

    Title: Magnetism in Single Xtals of Magnetite (Fe3O4): A MaxEnt-uSR Study

    Carolus Boekema
    San Jose State University (SJSU), USA

    Biography
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    Biography

    Carolus Boekema
    San Jose State University (SJSU), USA

    Dr. Carolus Boekema Professor Emeritus of Physics at San Jose State University (SJSU). His field of Research includes Magnetism in Cuprate Superconductors; Rare O[-1] ions in MgO (earthquake-like precursors); Modeling Frustration in Condensed Matter. He is Nominee, American Physical Society, Faculty Undergraduate Research 2017 Award, SJSU Faculty Mentor Awards 2017, 2013 & 2005; APS Far West Section (co-Founder) Grant support PIPD & coPI: ~1.7 M$; 111 refereed student-coauthored publications, including two Phys Rev Lett, two Phys Rev B Rapid Comm, and eight invited papers.



    Abstract
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    Abstract

    Carolus Boekema
    San Jose State University (SJSU), USA

    Magnetite has a fully spin-polarized band and is therefore considered an important spintronic oxide material. The internal fields in single crystals of magnetite (Fe3O4) have been previously studied through muon-spin rotation (mSR). [1] By Maximum-Entropy (ME) [2] we have analyzed single crystal Fe3O4mSR datain zero field and with external field B parallel to the <111>, <110> or <100> axis. Several mSR time series indicate a beat pattern. By curve fitting [1] and confirmed with improved precision by MEmSR, secondary frequency signals are observed in the temperature range above the Verwey transition (TV). Assuming one demagnization field and one muon-probe-site set, we find for roomtemperature (RT) <111> Fe3O4 fields larger than the maximum allowable. [1] We compare our RT B// <110>dependent results with those observed for 205 K <110>Fe3O4 [3] to better understand a transition observed at twice TV.The existence of these secondary signals may be related to phonon-assisted 3d-electron hopping. [3, 4] Another possibility could be magnetically different muon-probe sites. Our MEmSR B-dependent studies provide insight into the local magnetism and conduction mechanism of this Mott-Wigner glass. [1, 4]

    Time:
    12:25-12:50

    Title: Synthesis of Vertical Graphene Network

    Mineo Hiramatsu
    Meijo University, Japan

    Biography
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    Biography

    Mineo Hiramatsu
    Meijo University, Japan

    Professor Mineo Hiramatsu received his M. Eng. and D. Eng. degrees from Nagoya University. He is a Full Professor of Department of Electrical and Electronic Engineering and the Director of Research Institute, Meijo University, Japan. His main fields of research are plasma diagnostics and plasma processing for the synthesis of thin films and nanostructured materials. Author of more than 150 scientific papers and patents on plasma processes for materials science. Author of 5 books. More than 40 invited speakers at international conferences on plasma science and Nanomaterials. Japan Society of Applied Physics Fellow.



    Abstract
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    Abstract

    Mineo Hiramatsu
    Meijo University, Japan

    Graphene is a two-dimensional material with the large anisotropy between in-plane and out-of-plane directions. Graphene-based materials with large surface area are useful as electrodes for electrochemical and bio applications. Carbon nanowalls (CNWs) are layered graphenes with open boundaries, standing vertically on a substrate to form a self-supported network of mazelike-architecture. This kind of carbon nanostructure is also called as carbon nanoflake, carbon nanosheet, graphenenanosheet, and graphenenanowall. CNWs are sometimes decorated with metal nanoparticles and biomolecules. The structure of conductive CNWs with large surface area, combined with surface decoration, would be suitable for the platform in electrochemical and biosensing applications. CNW films can be potentially used as electrodes of electrochemical sensor, capacitor, dye-sensitized solar cell, polymer electrolyte fuel cell (PEFC), and implantable glucose fuel cell (GFC). Among these, CNW electrodes in fuel cells should be decorated with catalytic nanoparticles such as Pt. CNWs and similar vertical graphene structures can be synthesized by several plasma enhanced chemical vapor deposition (PECVD) techniques on heated substrates (600-800 ˚C) employing methane and hydrogen mixtures. Control of CNW structures including spacing between adjacent nanowalls and crystallinity is significant for the practical applications. Moreover, surface functionalization including surface termination and decoration with catalytic metal nanoparticles should be established. We carried out CNW growth using PECVD employing CH4/H2/Ar mixtures with emphasis on the structure control of CNWs. We report the current status of fabrication and structure control of CNWs. Moreover, CNW surface was decorated with Pt nanoparticles by the reduction of chloroplatinic acid or by the metal-organic chemical deposition employing supercritical fluid. We also report the performances of hydrogen peroxide sensor, PEFC and GFC, where CNW electrode was used.

    Time:
    14:00-14:25

    Title: Graphene Oxide/Brushite Cement: Promising Composites for Load Bearing Bone Substitutes

    Ammar Zeidan Ghailan Alshemary
    Karabuk University, Turkey

    Biography
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    Biography

    Ammar Zeidan Ghailan Alshemary
    Karabuk University, Turkey

    Dr. Ammar Z. Alshemary is an Assistant Professor in the Biomedical EngineeringDepartment at the Karabuk University. He achieved his PhD in materials chemistry in 2015 at Universiti Teknologi Malaysia, Malaysiaunder the supervision of Prof. Dr Rafaqat Hussain. And then DrAmmar joined Prof.Dr Zafer Evis’s lab as a postdoc from 2015 to 2016. After joining the Karabuk University in 2016, DrAmmar works on developing functional and bioactive biodegradable inorganic/organic biomaterial scaffolds and translational research for tissue repair and regeneration, and drug delivery applications.



    Abstract
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    Abstract

    Ammar Zeidan Ghailan Alshemary
    Karabuk University, Turkey

    Brushite (CaHPO4 • 2H2O) cementhas been shown to increase bone mineral density. However, low mechanical properties of the brushite cement under physiological conditions has limited its clinical use.In the present study,(1 gm) of (β-tricalcium phosphate (β-TCP)mixed with different fractions (0.05 and 0.10 Wt. %)of graphene oxidematerials)was reacted with (1 gm) of monocalcium phosphate monohydrate [Ca(H2PO4)2•H2O, MCPM] in the presence of (1 ml) of water to furnish corresponding graphene oxide/brushite cement. The microstructure of cement composites wasinvestigated using X-ray diffractometry (XRD) and field emission scanning electron microscopy (SEM). The effect of graphene oxide on the structural and mechanical properties of the brushite cement is clarified. Primary outcomes indicate that the presence of graphene oxide increases the compressive strength of brushite cement, from 6.453 (Pure brushite) to 6.457 (0.05% graphene oxide/brushite cement). Further studies are required to investigate the biological properties of cement composites.

    Time:
    14:25-14:50

    Title: Self-Assembled Nanoparticles from Pyrene-Labeled and Quaternized Chitosan: Promising Materials for Bioimaging and Gene Delivery

    Kornkanya Pratumyot
    King Mongkut’s University of Technology Thonburi, Thailand

    Biography
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    Biography

    Kornkanya Pratumyot
    King Mongkut’s University of Technology Thonburi, Thailand

    Dr. Kornkanya Pratumyot, Lecturer of Chemistry at King Mongkut’s University of Technology Thonburi, is an experimental chemist with research interests in the area of Biomimetic and Bio-Inspired Materials, Supramolecular Chemistry, Host-Guest Chemistry, Nanomaterials, Drug Delivery, and Gene Therapy. Dr. Kornkanya was born in 1986 in Rayong, Thailand. She graduated from Chulalongkorn University (Bangkok, Thailand) with a B.Sc. in Chemistry, 1st class honor, in 2009. She received her Ph.D. in Organic Chemistry from the Ohio State University, USA in 2016. She joined the Faculty at King Mongkut’s University of Technology Thonburi as a lecturer in 2017.



    Abstract
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    Abstract

    Kornkanya Pratumyot
    King Mongkut’s University of Technology Thonburi, Thailand

    We have developed a preparative procedure for obtaining a fluorescent-labeled amphiphilic chitosan (Pyr-CS-HTAP) having pyrene (Pyr), a fluorescent dye, as hydrophobic entity at C6 and N-[(2-hydroxyl-3-trimethylammonium)]propyl (HTAP) as hydrophilic entity at C2. This amphiphilic citosan, Pyr-CS-HTAP exhibited a major absorption and emission at 347 nm and 496 nm, respectively. As characterized by DLS and SEM, Pyr-CS-HTAPin water canself-assemble into spherical nanosized particles with a hydrodynamic diameter of 498 ± 66 nm (PDI = 0.6) and positive surface charges (zeta potential of +58 mV). However, upon complexing with DNA, in a half amount by weight, the Pyr-CS-HTAP aggregated into a smaller sized Pyr-CS-HTAP/DNA particles with a hydrodynamic diameter centered at 135 nm (PDI = 0.081)Moreover, Pyr-CS-HTAP showed no cytotoxicity against mouse leukaemic monocyte macrophage cell line (Raw264.7) upto 30 ug ml-1, suggesting its potential to be used as carriers for gene delivery and bioimaging.

    Sessions:
    Materials for Energy and Environment & Earth and Planetary Materials at High Pressures and Temperatures & Materials Chemistry and Physics & Mining, Metallurgy and Materials Science

    Time:
    14:50-15:15

    Title: Microstructural Basis of Thermoelasticity and Pseudoelasticity in Shape Memory Alloys

    Osman Adigüzel
    Firat University, Turkey

    Biography
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    Biography

    Osman Adigüzel
    Firat University, Turkey

    Dr. Osman Adiguzel graduated from Department of Physics, Ankara University, Turkey in 1974 and received PhD- degree from Dicle University, Diyarbakir-Turkey. He studied at Surrey University, Guildford, UK, as a post doctoral research scientist in 1986-1987, and studied on shape memory alloys. He worked as research assistant, 1975-80, at Dicle University and moved to Firat University, Elazig, Turkey in 1980. He became professor in 1996, and he has already been working as professor. He published over 50 papers in international and national journals; He joined over 100 conferences and symposia in international and national level as participant, invited speaker or keynote speaker with contributions of oral or poster. He served the program chair or conference chair/co-chair in some of these activities. In particular, he joined in last four years (2014 - 2017) over 30 conferences as Keynote Speaker and Conference Co-Chair organized by different companies. He supervised 5 Ph.D and 3 M.Sc- theses. Dr. Adiguzel served his directorate of Graduate School of Natural and Applied Sciences, Firat University, in 1999-2004. He received a certificate awarded to him and his experimental group in recognition of significant contribution of 2 patterns to the Powder Diffraction File – Release 2000. The ICDD (International Centre for Diffraction Data) also appreciates cooperation of his group and interest in Powder Diffraction File.



    Abstract
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    Abstract

    Osman Adigüzel
    Firat University, Turkey

    Shape memory effect (SME) is a peculiar property exhibited a series alloy systems. Successive structural transformations govern memory behavior. These transformations are induced by decreasing temperature and stressing material in low temperature by means of thermal induced and stress induced martensitic transformations. Shape memory effect is performed only thermally after these processes in a temperature interval, and this behavior is called thermoelasticity. Thermal induced martensitic transformation occurs as martensite variants with lattice twinning by means of shear-like mechanism in crystallographic scale, in materials on cooling. Twinned martensite structures turn into detwinned martensite structure by means of stress induced transformation by deforming plastically in martensitic condition. Martensitic transformations occur by two or more lattice invariant shears on a {110}-type plane of austenite matrix which is basal plane or stacking plane for martensite. Shape memory alloys exhibit another property called pseudoelasticity (PE), which is performed in only mechanical manner. These alloys can be deformed in parent phase region just over austenite finish temperature, and recover the original shape on releasing the stress in pseudoelastic manner. Both SME and PE is associated martensitic transformation. SME is a result of thermally induced martensitic transformation and deformation of material in the product martensite region, whereas PE is the result of stress-induced martensitic transformation, which occurs by only mechanical stress at a constant temperature. With this stress, parent austenite phase structures turn into the fully detwinned martensite. Copper based alloys exhibit this property in metastable β-phase region. Lattice invariant shears are not uniform in these alloys, and the ordered parent phase structures martensitically undergo the non-conventional long-period layered structures on cooling. The long-period layered structures can be described by different unit cells depending on the stacking sequences on the close-packed planes of the ordered lattice. The close-packed planes, basal planes, exhibit high symmetry and short range order as parent phase. The unit cell and periodicity is completed through 18 layers in direction z, in case of 18R martensite, and unit cells are not periodic in short range in direction z. In the present contribution, x-ray and electron diffraction studies were carried out on two copper based CuZnAl and CuAlMn alloys. These alloy samples have been heat treated for homogenization in the β-phase fields. X-ray diffraction profiles and electron diffraction patterns reveal that both alloys exhibit super lattice reflections inherited from parent phase due to the displacive character of martensitic transformation. X-ray diffractograms taken in a long time interval show that diffraction angles and intensities of diffraction peaks change with the aging time at room temperature, and this result leads to the rearrangement of atoms in diffusive manner. Keywords: Shape memory effect, martensitic transformation, thermoelasticity, pseudoelasticity, lattice twinning and detwinning.

    Time:
    15:30-15:55

    Title: Concentration Dependent Structural, Morphological and Optoelectronic Properties of Sprayed Cadmium Based Transparent Conducting Oxide

    Sandeep Prakash Desai
    KITS College of Engineering, India

    Biography
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    Biography

    Sandeep Prakash Desai
    KITS College of Engineering, India

    Dr. Sandeep Prakash desai is an Assistant Professor from KIT’s College of Engineering, India; He has a Teaching Experience of 13 Years, Area of Specialization in Applied Physics, Material Science. He obtained his from Shivaji University, India with Title: Studies on Synthesis and Characterization of Cadmium Based Transparent Conductive Oxide Thin Films, under the guidance of Dr. A. V. Moholkar. He attended various National / International Seminars, Conferences and also participated in many Workshops. He has published many Papers in International Journal. Dr. S.P Desai has published a Book: A text Book of Engineering Physics: 2K-Publication, ISBN No. 9788193077788



    Abstract
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    Abstract

    Sandeep Prakash Desai
    KITS College of Engineering, India

    The effect of precursor concentration on the physico-chemical properties of cadmium oxide (CdO) thin films deposited using simple and effective chemical spray pyrolysis technique (SPT) is studied. The X-ray diffraction study shows polycrystalline, face centered cubic structure of CdO films. Field emission scanning electron micrographs and cross-sectional images of CdO thin films shows that morphology of films changes from rough to smooth and thickness of the films increases from 794 nm to 1523 nm, as cadmium content increased in spraying solution. X-ray photoelectron spectroscopy confirms presence of 4d, 4s, 3d5/2, 3d3/2, 3p3/2, 3p1/2 fine structural states of cadmium and 1s fine structure state of oxygen. The optical study shows that the direct band gap energy values decreases from 2.58 to 2.42 eV with increase in precursor concentration which is attributed to B-M effect. The Hall Effect measurement indicates that all the films exhibit n-type semiconducting behavior, the electrical resistivity decreases from 34.5 x 10-4 to 2.7 x 10-4 Ω.cm for 0.025M to 0.1 M solution concentration and further increase to 12.5 x 10-4 Ω.cm for 0.125 M concentration. The CdO thin film deposited with 0.1 M precursor concentration exhibits the best optoelectronics properties amongst the all other CdO films. It shows transmittance of 74 %, high figure of merit of 25.3 x 10-3 (Ω)-1, carrier concentration of 5.87 x 1020 /cm3 and mobility of 40 cm2/Vs. Photoluminescence spectra of CdO thin film gives two significant photoemission peaks at 434 and 539.80 nm (green) when they are excited at 400 nm wavelengths.

    Time:
    15:55-16:20

    Title: New Frontiers for Novel Advanced Membrane Technologies

    Amira Abdelrasoul
    University of Saskatchewan, Canada

    Biography
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    Biography

    Amira Abdelrasoul
    University of Saskatchewan, Canada

    Dr. Amira Abdelrasoul, P.Eng. is an Assistant Professor in the Chemical and Biological Engineering Department at the University of Saskatchewan. Prior to joining the University of Saskatchewan in 2017, she was a Lecturer and Postdoctoral Research Associate in the Department of Chemical Engineering at Ryerson University in Toronto, Ontario. Dr. Abdelrasoul received her PhD degree in Chemical Engineering in 2015 from Ryerson University with the Governor General’s Academic Gold Medal and the C. Ravi Ravindran Outstanding Doctoral Thesis Award. Her research interests focus on Membrane Science and Technology for Water and Energy Sustainability, and Biomedical Applications; Process Modeling, Simulation, and Optimization of Complex Systems; and Biomimetic Nanomaterials for Advanced Technologies and Biomedical Applications. Her outstanding contributions in the field were recognized with numerous prestigious excellence awards. In addition, Dr. Abdelrasoul is a licensed Instructional Skills and Educational Development Facilitator and a fellow of the Educational Development Association.



    Abstract
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    Abstract

    Amira Abdelrasoul
    University of Saskatchewan, Canada

    Clean water as basic human need is not available to 1.4 -1.8 billion people around the world. It is essential to direct current research trends toward sustainable water and wastewater treatment technologies that can solve the existing industrial and environmental issues, especially when it comes to solutions that can be successfully commercialized on the global scale. Membrane applications are the most effective and sustainable methods of addressing environmental problems in treating water and wastewater to meet or exceed stringent environmental standards. Nevertheless, membrane fouling is one of the primary operational concerns that is currently hindering its widespread application. My major research focus is to optimize synthesis of biomimetic membranes designed with antifouling, and selective permeation that will pave the way for the production of clean water.

    Time:
    16:20-16:45

    Title: Improvements of Backside Grinding/Metal (BGBM) and Die Bonding for MOSFET Power IC Packages

    Yan-Cheng Lin
    National Taiwan University, Taiwan

    Biography
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    Biography

    Yan-Cheng Lin
    National Taiwan University, Taiwan

    Yan-Cheng Lin received the Ph.D. degree from the Department of Materials Science and Engineering, National Taiwan University, Taipei, Taiwan, in 2016. He is currently a Research & Development Engineer with the Wire Technology Co., Ltd, Taichung, Taiwan and Ag Materials Technology Co., Hsinchu, Taiwan. He has authored sixteen Science Citation Index papers on Ag-alloy bonding wire, thermoelectric modules, and optical recording thin films. His current research interests include integrated circuit bonding wire, electronic packages, thin-film technology, and thermoelectric materials.



    Abstract
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    Abstract

    Yan-Cheng Lin
    National Taiwan University, Taiwan

    For the manufacturing of MOSFET power IC packages, a Si wafer was thinned to a thickness less than 100 μm, metalized with multi- thin films and then bonded to a substrate. Traditionally, a Ti/Ni/Ag multilayer has been widely employed for the backside metallization process. However, the most root cause occurred at the Ni/Ag interface due to the weak cohesion between Ni and Ag. In addition, TiSi intermetallic compounds might appear at the Si/Ti interface, leading to a brittle fracture of the package. In this study, a 0.5μm thin Sn film was inserted between Ni and Ag to increase the bonding strength of Ni/Ag interface, and the Ti film was replaced with a WTi film to prevent the brittle fracture at Si/Ti interface. Additionally, Ti/WTi/Ti triple-films were also employed to improve the bonding effect of Ti with Si chips. Furthermore, conventional soldering method has been applied for the die attachment of backside treated IC chips with direct copper bonding (DBC) substrates using an expensive Au-20 Sn alloy. The melting temperature of this eutectic Au-20Sn solder (278℃) limited the operating temperature of power IC packages. A low cost Solid Liquid Inter-diffusion Bonding (SLID)technique was evaluated for the die bonding to increase the durability of the product to 400℃. For this purpose, a 4μm Sn film was deposited on the Ag surface of backside metallized Si/Ti/Ni/Ag chips and heated at 300℃ for 10 min. During the SLID process, the molten Sn interlayer reacted completely with Ag film on Chip-side and Cu pad on DBC substrate to form Ag3Sn and Cu6Sn5 intermetallic phases, which have high melting points of 480℃ and 415℃, respectively.

    Time:
    16:45-17:10

    Title: A Smart Idea for Green Water Flooding of Oil Reservoirs at High Salinity and High Temperature

    Omar Chaalal
    Abu Dhabi University, UAE

    Biography
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    Biography

    Omar Chaalal
    Abu Dhabi University, UAE

    Omar Chaalal is an Associate Professor of Chemical Engineering at Abu Dhabi University (ADU). Chaalal is an internationally renowned expert in the separation technologies. He is the inventor of the EnPro Process that deals with the sequestration of carbon dioxide and global warming reduction. He has undertaken several successful researches related to CO2 cleaning in Natural Gas and subsequently two patents applications have been filed for the use of this technology. The benefits of these patents were, in addition to the environmental benefits, used in the treatment of large quantities of desalinated formation water in the oil field. Chaalal has pioneered among others the use of seawater and ammonia to reduce the effect of carbon dioxide on the environment. Chaalal was an associate professor of Chemical Engineering at Ibn Khaldun University Algeria, as well as at the United Arab Emirates University. He was the Chief Scientist of Enpro As. Norway, a member of Al Mobdioon Center of Excellence and innovation of King Abdul Aziz University (Saudi Arabia), an Advisory Board of IIB environmental Company in Japan and a member of the board of the Journal of Nature Science and Sustainable Technology (Nova Science Publisher). He has authored 50 refereed publications, 2 European patents, 1 US patent pending and 200 presentations.



    Abstract
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    Abstract

    Omar Chaalal
    Abu Dhabi University, UAE

    Many oil formations contain water having high salinity and/or high concentrations of divalent ions such as calcium or magnesium dissolved therein, and are additionally at temperature high temperatures. Most of the available surfactants used in oil recovery operations are either ineffective in high salinity or high hardness waters, or incapable to stand the higher temperatures encountered in many formations. A powerful natural product that improves enhance oil reservoirs recovery through the reduction of interfacial tension and increases the volumetric sweep efficiency of fractured and /or heterogeneous oil reservoirs is introduced in this invention. The novel green surfactant for EOR is extracted from Z.S.C plant and AL.VE plant. This natural agent proves to be very effective in formations containing water whose salinity is from 70,000 to 180,000 parts per million total dissolved solids and also having temperatures as high as 100° C. The agent is mixed with the formation water and is stable over a wide range of formation temperatures and water salinities and hardness values.

  • Keynote Speaker

    Time:
    10:00-10:40

    Title

    Title: Computer Analysis of the Adsorption Process on Metal-Organic Frameworks

    Mirosław Kwiatkowski
    AGH University of Science and Technology, Poland
    Biography
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    Biography

    Mirosław Kwiatkowski
    AGH University of Science and Technology, Poland

    Dr. Miroslaw Kwiatkowski in 2004 obtained Ph.D. degree from the Faculty of Energy and Fuels at the AGH University of Science and Technology in Krakow (Poland), and in 2018 D.Sc. degree from the Faculty of Chemistry at the Wroclaw University of Technology (Poland). His published work includes more than 45 papers in reputable international journals and 80 conference proceedings. Dr. hab. eng. Miroslaw Kwiatkowski is the editor in chief of The International Journal of System Modeling and Simulation (United Arab Emirates), an associate editor of Micro & Nano Letters Journal (United Kingdom) and a member of the editorial board of internationals journals as well as a member of the organizing and scientific committees many international conferences.



    Abstract
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    Abstract

    Mirosław Kwiatkowski
    AGH University of Science and Technology, Poland

    Adsorption processes are among the widespread applications of Metal-Organic Frameworks (MOFs), which found employment in: removal of harmful substances such as heavy metals from liquid and gaseous streams, storage and sequestration of gases such as carbon dioxide, methane and hydrogen as well as in separation and purification of gases and others. The performance and applicability of MOFs in mentioned processes among others depend on the high specific surface area and adsorption capacity. In this work adsorption properties of N2, CO2 and CH4 on Basosiv M050 sample were determined by a volumetric method. The adsorbed volume values with respect to relative pressure were obtained for all of the gases. The nitrogen adsorption isotherms were studied at 77 K, and carbon dioxide and methane adsorption isotherms were studied at 273 K. The BET and Langmuir surface areas of the samples were determined using N2 adsorption isotherms. Adsorption capacities for CO2 and CH4 are also calculated from their isotherm analysis. Additionally, the new numerical method with the unique fast multivariant identification procedure was employed for the analysis of the adsorption process on a specific type of a MOF sample, Basosiv M050. The proposed tools permit the gathering of a broader spectrum of information on the analyzed structure of MOFs materials and the adsorption processes taking place on their surface as compared with the others methods. Additionally the proposed method with unique numerical procedure can be a good starting point for the development of more advanced tools.

    Keynote Speaker

    Time:
    10:55-11:35

    Title

    Title: Search for O-1 Earthquake-like Precursors: A MaxEnt-μSR MgO Study

    Carolus Boekema
    San Jose State University (SJSU), USA
    Biography
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    Biography

    Carolus Boekema
    San Jose State University (SJSU), USA

    Dr. Carolus Boekema Professor Emeritus of Physics at San Jose State University (SJSU). His field of Research includes Magnetism in Cuprate Superconductors; Rare O[-1] ions in MgO (earthquake-like precursors); Modeling Frustration in Condensed Matter. He is Nominee, American Physical Society, Faculty Undergraduate Research 2017 Award, SJSU Faculty Mentor Awards 2017, 2013 & 2005; APS Far West Section (co-Founder) Grant support PIPD & coPI: ~1.7 M$; 111 refereed student-coauthored publications, including two Phys Rev Lett, two Phys Rev B Rapid Comm, and eight invited papers.



    Abstract
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    Abstract

    Carolus Boekema
    San Jose State University (SJSU), USA

    We study O-1 earthquake-like precursor effects [1,2] by analyzing Muon-Spin-Resonance (SR) MgO data using Maximum Entropy (MaxEnt). [3,4] Due to its presence in the Earth's crust, MgO is ideal for studying these features: O-1 (or positive-hole) formation results from a 2-stage break-up in an oxygen anion pair under elevated temperatures or high-pressure conditions.[2] As temperature increases above room temperature (RT) a small percentage is predicted to produce an O-1 state. MaxEnt analysis of transverse field (TF) (100-Oe) SR data of a pure 3N-MgO single crystal show a broad Gaussian signal at 1.36 MHz and a sharp signal at 1.4 MHz. In MgO, the muon localizes in a vacant oxygen tetrahedron, as positive muons probe near negative O ions. For MgO, MnO and Al2O3, TF-SR data show only the expected +O-2 Gaussian signal. In MgO, an additional sharp 1.4-MHz signal has been seen, strongly suggesting the existence of extended O-1 states. [1,2] We have fitted MaxEnt-SR transforms of MgO to obtain an empirical description. Their temperature dependences above RT appear to be positive-hole effects. The O-valency effects, related to earthquake-like precursors, are discussed.

    Sessions:
    Computational Materials Science & Nanotechnology in Materials Science & Synthesis & Architecture of Materials & Ceramics, Polymers, Electrical, Optical, Magnetic and Composite Materials & Smart Materials and Structures & Surface Science and Engineering & Materials in Industry

    Time:
    11:35-12:00

    Title: Synthesis, Characterization, DFT Calculations, NLO Properties and Different Applications of Ni(II), Pd(II), Pt(II), Mo(IV) and Ru(I) Complexes with NOS Schiff Base

    Samir M El-Medan
    Fayoum University, Egypt

    Biography
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    Biography

    Samir M El-Medan
    Fayoum University, Egypt

    Dr. Samir Moustafa El-Medani is a Professor of Inorganic Chemistry, Department of Chemistry, from Fayoum University, Egypt. He did Bachelor of Science Degree, Department of Chemistry, Cairo University, 1967 & M. Sc. Degree in Analytical Chemistry, Ain Shams University, 1977 and Ph.D. of Science in Inorganic Chemistry, Ain Shams University, 1985. He was a Lecturer of Chemistry Department Sana’a University, Assistant Professor, Chemistry Department from Cairo University, Fayoum Branch, 1993. He is a Chief of research team concerning a project entitled "Spectroscopic Studies on the complexes resulting from the interaction of carbonyls with some transition elements pyridine derivatives" K.S.A., Umm Al-Qura University, K.S.A. And the main supervisor for several Theses in Inorganic and Analytical Chemistry, have 60 international researches & Participation in the several International Conferences.



    Abstract
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    Abstract

    Samir M El-Medan
    Fayoum University, Egypt

    Thermal reaction of Ni(NO3)2.6H2O, PdCl2, PtCl2, Mo(CO)6 and Ru3(CO)12with the prepared Schiff base ligand N-(2-hydroxy-1-naphthylidene)-2-aminothiophenol (H2L) resulted in the formation of the five complexes; [Ni(HL)2], 1; [Pt(H2L)Cl2], 2; [Pd2(HL)2Cl2], 3; [Mo(O2)(H2L)], 4; and [Ru(CO)3(HL)], 5. The studied compounds were characterized using different spectroscopic techniques (IR, 1H NMR, mass) elemental analyses, magnetic measurement, molar conductance, and thermal analysis. Theoretical calculations based on accurate DFT approximations were used to verify the structures of ligand and complexes. Coats and Redfern method was used to compute the kinetic and thermodynamic parameters. The relative reactivities were estimated using chemical descriptors analysis. The antioxidant activity against DPPH radical was evaluated in vitro by using spectrophotometric methods; the experiments showed potent antioxidant activity. Also, the interaction of the reported compounds with calf thymus DNA (CT-DNA) by different techniques revealed that the complexes could bind to CT-DNA by intercalative mode. Antibacterial activities of the synthesized compounds have been studied against Gram-positive and Gram-negative bacteria by the agar well diffusion. The antifungal activity of the synthesized compounds was tested using agar well diffusion method. The binding of the reported complexes to calf thymus DNA has been investigated using fluorescence and UV-Vis absorption spectra. The results indicated a much lower binding affinity of the ligand than that of the complexes.

    Time:
    12:00-12:25

    Title: Assembly and Folding of Twisted Baskets in Organic Solvents

    Kornkanya Pratumyot
    King Mongkut’s University of Technology Thonburi, Thailand

    Biography
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    Biography

    Kornkanya Pratumyot
    King Mongkut’s University of Technology Thonburi, Thailand

    Dr. Kornkanya Pratumyot, Lecturer of Chemistry at King Mongkut’s University of Technology Thonburi, is an experimental chemist with research interests in the area of Biomimetic and Bio-Inspired Materials, Supramolecular Chemistry, Host-Guest Chemistry, Nanomaterials, Drug Delivery, and Gene Therapy. Dr. Kornkanya was born in 1986 in Rayong, Thailand. She graduated from Chulalongkorn University (Bangkok, Thailand) with a B.Sc. in Chemistry, 1st class honor, in 2009. She received her Ph.D. in Organic Chemistry from the Ohio State University, USA in 2016. She joined the faculty at King Mongkut’s University of Technology Thonburi in 2017.



    Abstract
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    Abstract

    Kornkanya Pratumyot
    King Mongkut’s University of Technology Thonburi, Thailand

    The twisted baskets of type (P)-3 are container shaped organic molecules that possessquinoline gates on the top, above the cavity. These cavitandshave characteristic chiral environments (ECCD). The quinoline gates of these chiral basketswere found to fold in polar acetonitrile and unfold in less polar dichloromethane (1H NMR). Interestingly, the cup-shaped (P)-3 assembled into large unilamellar vesicles in their both folded and unfolded stages (DLS, TEM, SEM). Moreover, the (P)-3 typed baskets were capable of binding to Cu(II) forming Cu(II) ⸦ (P)-3 complex (1H NMR, ECCD, Hi-Res ESI) with square pyramidal coordination geometry about the Cu(II) center (EPR). The ability of twisted baskets to form functional nanostructured materials and bind to metals could be of interest for building stereoselective sensors and catalysts.

    Time:
    12:25-12:50

    Title: Fabrication of Dy3+ Ion Doped Nano Crystalline Y2O3 Infrared Transparent Ceramics by a Microwave Sintering Technique

    Steffy Maria Jose
    Kerala University, India

    Biography
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    Biography

    Steffy Maria Jose
    Kerala University, India

    Ms. Steffy Maria Jose is a first year Ph.D student in Materials Science and Nanotechnology at the University of Kerala, India. Prior to her present affiliation at the University of Kerala, she earned a Master’s and M.Phil degree in Physics both from Mahatma Gandhi University, Kerala, India. She gained research interest during her Master’s and M. Phil programme in Physics and gained basic knowledge in research methodology. Currently she is doing research in the synthesis of yttria based nanoceramics and composites for their applications as infrared transparent window materials for missile applications at the Electronic Materials Research Laboratory ,Department of Physics, Mar Ivanios College (Autonomous), University of Kerala.



    Abstract
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    Abstract

    Steffy Maria Jose
    Kerala University, India

    Synthesis of high quality Dy3+ ion doped Y2O3 starting powder by a modified combustion technique followed by microwave sintering technique for the fabrication of high dense infrared transparent ceramics is presented in the paper. The as-prepared nanocrystalline powders are characterized using X-ray diffraction (XRD) to study their structure and phase. Dy3+ ion is added to Y2O3 matrix at different concentrations for tuning the physical properties and we have optimized a system Dy0.1Y1.9O3 exhibiting relatively improved optical thermal, and transmittance and properties. All the peaks of Dy0.1Y1.9O3 were indexed for a cubic structure with lattice parameter a = 10.623 Å. The average crystal size calculated for the sample using Debye-Scherer‘s equation, is ~7.719 nm. The Dy0.1Y1.9O3 Nanoparticles are compacted to pellets using a hydraulic pressing followed by sintering using microwave energy in a microwave furnace at an optimum temperature 1530 0C and obtained an enhanced sintered density of 98.6% of theoretical density. The well sintered pellets are subjected to micron sized fine polishing, followed by thermal etching for carrying out the morphological investigations using Scanning Electron Microscopy (SEM). The Poly crystalline Dy3+ ion doped yttria ceramics (Dy0.1Y1.9O3) shows 76% transmittance in 3-8 µm infrared regions. The result clearly indicates that Dy3+ ion doped Y2O3 sample can be effectively used to fabricate infrared transparent ceramics material.

    Time:
    14:00-14:25

    Title: 2D Layered Pnictogenenes Rediscovered for Electrochemical Applications

    Rui Gusmão
    University of Chemistry and Technology, Czech Republic

    Biography
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    Biography

    Rui Gusmão
    University of Chemistry and Technology, Czech Republic

    Rui Gusmão received his PhD degree in Chemistry from the University de Barcelona, Spain (2012). As a postdoctoral researcher, he firstly worked at University of Porto, Portugal, and University of Minho, Portugal. In 2016, he joined Professor Pumera’s group at Nanyang Technological University (Singapore). He is currently a Research Fellow at the Center for Advanced Functional Nanorobots, in Prague, Czech Republic. His research interests include the fundamental electrochemical studies of 2D layered materials for sensing and energy related application. He has authored more than 20 publications in international peer-review journals and has an h-index of 9.



    Abstract
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    Abstract

    Rui Gusmão
    University of Chemistry and Technology, Czech Republic

    The bulk form of orthorhombic black phosphorus (BP) layered structure was first synthesized in 1914 but received sparse attention until it was rediscovered in 2014 in the new wave of 2D layered nanomaterials. Nevertheless, the development of BP applications has been hampered by its surface degradation, thus efforts to achieve effective BP passivation are ongoing. Subsequently, interest has turned onto other 2D monoelementalmonolayer structures of the pnictogens group: arsenene, antimonene and bismuthene. Their properties differ significantly upon crystal structure and delamination. It can be envisage their future applications in several research fields, such as self-propelled micro/nanodevices for on-demand delivery in electronic and biological systems. Herein we demonstrate that aqueous shear exfoliation can be used to obtain pnictogen (P, As, Sb and Bi) exfoliated nanosheets. Morphological and chemical characterization of the exfoliated materials shows a decrease in thickness, sheet to nanosheet scale and partial oxidation due to the higher surface area. Nanosheets degradation can be minored with functionalization strategies. Electrochemical performancesare tested in terms of inherent electrochemistry and heterogeneous electron transfer. Potential energy-related applications are evaluated in the hydrogen evolution reaction (HER), oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) with shear exfoliated Sb having the best electrochemical performance overall. These findings can have a profound impact on the preparation and energy applications of pnictogen 2D materials.

    Time:
    14:25-14:50

    Title: Cross-Linkable Hole Transporting Materials for Solution Processed Multilayer Structure Organic Light Emitting Diodes

    Kyoung Soo Yook
    Sungkyunkwan University, South Korea

    Biography
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    Biography

    Kyoung Soo Yook
    Sungkyunkwan University, South Korea

    Dr. Kyoung Soo Yook is an Assistant Professor in School of Chemical Engineering at Sungkyunkwan University. He received his Ph.D. from Dankook University, in 2012. His research focused on the development of devices structures for solution and vacuum deposited phosphorescent and TADF organic light emitting.



    Abstract
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    Abstract

    Kyoung Soo Yook
    Sungkyunkwan University, South Korea

    Organic light emitting diodes has multilayer structure to confine hole and electrons in the emitting layer. However, it is difficult to form a multilayer structure using a solution process; because the underlying layer can be damaged by the upper layer solvent during a conventional solution process.The solubility of the deposited film must be adjusted to form a multilayer structure in solution process. Therefore, thermally cross-linkable styrene unit was employed in the hole transporting material and could reduce solubility of hole transporting material after thermal annealing. Multilayer structure organic light emitting diodes could be fabricated using a cross-linkable hole transporting material and device showed maximum quantum efficiency of 14.5%.

    Time:
    14:50-15:15

    Title: Application of the New Computational Method to the Analysis of Micro porous Structure of the Carbonaceous and Mineral Adsorbents

    Mirosław Kwiatkowski
    AGH University of Science and Technology, Poland

    Biography
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    Biography

    Mirosław Kwiatkowski
    AGH University of Science and Technology, Poland

    Dr. Mirosław Kwiatkowski in 2004 obtained Ph.D. degree from the Faculty of Energy and Fuels at the AGH University of Science and Technology in Kraków (Poland), and in 2018 D.Sc. degree (habilitation) from the Faculty of Chemistry at the Wrocław University of Technology (Poland) in the discipline: chemical technology. His published work includes more than 45 papers in reputable international journals and 75 conference proceedings. He is the editor in chief of The International Journal of System Modeling and Simulation (United Arab Emirates), an associate editor of Micro & Nano Letters Journal (United Kingdom) and a member of the many editorial board of internationals journals as well as a member of the organizing and scientific committees international conferences in Europe, Asia and USA, and a regular reviewer in a reputable scientific journals.



    Abstract
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    Abstract

    Mirosław Kwiatkowski
    AGH University of Science and Technology, Poland

    The work presents the original results of a research into analyzing the micro porous structure of carbonaceous and mineral adsorbents. The calculations were carried out with the use of the new computational method with implemented original mathematical models of the adsorption on heterogeneous surfaces. The used method yield a broader range of highly reliable information on the analyzed structure and consequently constitute an alternative to the popular simple and most sophisticated method of the description of the porous structure. More specifically, reliable information is collected as to the shape and size of the analysed micropores, the type of the existing limitations on the growth clusters of adsorbate molecules, the degree of surface heterogeneity, and the distribution of adsorption energy on the surface of the analysed material. The presented research provided also reliable information on the usefulness of the employed method of porous structure description for practical technological applications and scientific research, as well as the possibilities to make practical use of the research results.

    Time:
    15:15-15:40

    Title: Ultrasonic Bonding of Annealing Twinned Ag-alloy Ribbons with DBC Substrates for High Power IC Packaging

    Chun-Hao Chen
    National Taiwan University, Taiwan

    Biography
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    Biography

    Chun-Hao Chen
    National Taiwan University, Taiwan

    Chun-Hao Chen received a B.S. degree in Department of Material Science and Engineering from National Cheng Kung University, Tainan, Taiwan, in 2013 and a M.S. degree from the National Taiwan University, Taipei, Taiwan, in 2015. He is pursuing a Ph.D. degree at the Institute of Materials Science and Engineering, National Taiwan University, Taipei, Taiwan. He has published 3 SCI papers on Ag-alloy electronic bonding wire. His research interests include IC bonding wire, electronic packages, and IC processes.



    Abstract
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    Abstract

    Chun-Hao Chen
    National Taiwan University, Taiwan

    Although aluminum thick wires and ribbons have been used for the interconnections between power IC chips and direct bonded copper (DBC) substrates, their low melting temperature limits the application in high power IC packages. Copper ribbon bonding was considered as an alternative material for aluminum wire and ribbon due to its high melting point and low electrical resistivity. However, the hardness of copper can cause damage to the metallization on IC chips and DBC substrates. In addition, the Cu ribbon tail at the stitch bond can be pulled up and detached. The ultrasonic bonding of Ag-alloyribbonson DBC substrates metalized with Ni/Pd and Ni/Pd/Au films was evaluated for substitution of Al and Cu ribbons. The microstructure of such Ag-alloy ribbons has an ultra-high twin density of over 65%, which improves their mechanical strength without degrading the electrical conductivity. The results indicated that sound interfaces with satisfactory bonding forces of 1483 g and 1243 g can be obtained for the bonding of 100 μm thick pure Ag and Ag-4Pd ribbons on Ni/Au metalized DBC substrates, respectively. The bonding of Ag-4Pd alloy ribbons with thicknesses of 80 and 100 μm on the DBC substrates metalized with Ni/Pd and Ni/Pd/Au also showed sufficient pull strengths of 1283 g and 1247 g, respectively.

    Time:
    15:55-16:20

    Title: Assessment of the Mechanical Properties of Marble and Granite Dust - High Impact Polystyrene Composites

    Mohamed Ibrahim
    Ain Shams University, Egypt

    Biography
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    Biography

    Mohamed Ibrahim
    Ain Shams University, Egypt



    Abstract
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    Abstract

    Mohamed Ibrahim
    Ain Shams University, Egypt

    Experimental work has been carried out to study the effect of adding marble and Granite dust (MGD) on the mechanical properties of high impact polystyrene (HIPS). The selected wt. % of MGD was 10, 20, 30, 40, 50 and 60. MGD was chemically treated by adding 2 wt. % stearic acid in an attempt to prevent agglomeration of the dust particles. Mechanical tests were carried out according to the ASTM standards to assess the bending strength and impact strength for both treated and untreated MGD-HIPS composites and also, Vickers hardness test was conducted. SEM analysis was also performed to interpret the results achieved throughout different tests.

    Time:
    16:20-16:45

    Title: Elaboration and Characterization Structural of Chromium Substituted Magnesium Spinal Ferrite

    K Sabri
    University of Mostaganem, Algeria

    Biography
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    Biography

    K Sabri
    University of Mostaganem, Algeria



    Abstract
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    Abstract

    K Sabri
    University of Mostaganem, Algeria

    The standard double sintering ceramic technique at 1100 °C for 12h was used to prepare samples of MgCrxFe2-xO4 at compositions of x = 0, 0.2, 0.5, 0.7 and 1 The ingredient materials were analytical high purity grade MgO, Fe2O3 and Cr2O3(BDH). The details of samples preparation are described elsewhere. The single-phase spinel structure was confirmed by the XRD spectra of these samples obtained with a PANalytical X’Pert Pro diffractometer using CuKα radiation (λ¼1.5406 Å) The scans’ ranges were kept the same for all samples 2θ=20–100° using a step size of 0.01° with sample time of 10 s. For recording IR spectra, samples were prepared by mixing with KBr then hydraulically pressing at 10tons/cm2 in a cylindrical disc. The IR measurements of the prepared samples were recorded at room temperature in the range from 400 cm1 up to 1000 cm1 using a Nicolet iS10 FT-IR spectrophotometer. The Raman spectra were recorded using a commercial LABRAM-HR spectrometer equipped with a CCD detector and liquid nitrogen cooled. It has 800 mm focal length and is equipped with a grid of 600 t/mm enabling spectral resolution of 1 cm1 /pixel. The Raman measurements were carried out using a laser source of 632.8 nm and the optical intensity at the sample surface was kept at 0.1 mW to avoid damaging. The microstructure and sample morphology were examined with an analytical scanning electron microscope (ASEM) JEOL; JSM6360. The ASEM is coupled with an energy dispersive system (EDS) for elementary composition analysis of samples. Conclusion: The characterization of MgCrxFe2 xO4 ferrites system prepared by the conventional solid state reaction with double sintering at 1100 °C shows that: 1. Rietveld refinement of XRD patterns validate the cubic spinel structure in space group Fd3m over the whole composition range from x=0 to x=1. 2. The Rietveld refined cell parameters decrease with increasing chromium content and the lattice constant appears to obey Vegard's law. 3. The FT-IR spectra indicate two main absorption bands, a high band (580–610 cm 1) for tetrahedral (A) sites and a lower band (400–410 cm 1) for octahedral [B] sites, thus confirming the single phase spinal structure. 4. For all compositions, Raman spectra show the five active modes A1g+E1g+3T2g of the motion of O2 ions and both the A-site and B-site ions. 5. The frequencies trend with chromium content of both FT-IR and Raman spectra presents a shift toward higher values for all modes.

    Time:
    16:45-17:10

    Title: AES ,EELS and XPS characterization of the ZnO surface.

    Hamaida Kheira
    University Center BELHADJ Bouchaïb, Algeria

    Biography
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    Biography

    Hamaida Kheira
    University Center BELHADJ Bouchaïb, Algeria



    Abstract
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    Abstract

    Hamaida Kheira
    University Center BELHADJ Bouchaïb, Algeria

    The indium oxide In2O3 and InPO4 are the transparent conducting ovidés (T .C.O) appropriate to several applications in optoelectronic field. The irradiation by 4keV Energy on the InP substrate led to genereate two oxides such as InPO4 and In2O3. Developed on the InP. Owing the both methods of Analyis, Auger Electron Spectroscopy (AES) and Electron Energy Loss Spectroscopy (EELS) thy can detected the presence of these oxides. When using the treatments by Casa XPS and webPlotDigezer softwares, the quantities of InPO4 and In2O3 have been estimated according to the time of electron irradiation.

    Sessions:
    Poster Presentations

    Time:

    Title: Development of Lipid Matrix Tablets from SLM for Modified Drug Release

    Viridiana Gisela Llera Rojas
    National Autonomous University of Mexico, Mexico

    Biography
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    Biography

    Viridiana Gisela Llera Rojas
    National Autonomous University of Mexico, Mexico

    Dr. Llera is a time part-time professor at the Faculty of Chemistry of the Universidad Nacional Autónoma de México (UNAM) at Pharmacy department since 2011. She studied her BSc, MCs and her PhD in Pharmaceutical Sciences at UNAM. Her main research areas are the development of nanoscale systems for drug delivery release and the design and theevaluation of new strategies to increase the bioavailability of lipophilic drugs. Her doctoral thesis work has received the poster award at APGI 3rd Conference Innovation in Drug Delivery, Advances in Local Drug Delivery (Pisa, Italia. September 2013). She has supervised eigthbachelors thesis.



    Abstract
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    Abstract

    Viridiana Gisela Llera Rojas
    National Autonomous University of Mexico, Mexico

    Solid lipid micro particles (SLM) are lipid microscale drug reservoirs. SLM couldprotect drugs against degradation, control release and enhance oral absorption.All of these properties would allow the SLM to be used for the manufacture of lipid matrix tablets. SLM were prepared by hot emulsion using stearyl alcohol (53%), Tween® 80 (8.0 %), Span ® 60 (5.0 %) andibuprofen (IBP) (40.0 %) as model drug.The particles were purified by freeze-drying. The microscopy study shows two SLM populations,(spherical and acicular shape). The IBP drug payload was 98.13 + 0.52% (n=3). The angle of repose (26.73o+1.15o, n= 3), bulk density (0.2129 + 0.0034 g/mL, n=3) and tapped density (0.2384 + 0.0139 g/mL, n=3) were determinated as described at USP 39. Carr index (10.48 + 3.8 %, n=3) and Hausner index (1.12 + 0.05, n=3) were calculated considering density values. Despite SLM’s irregular shape, the values of CI, HI and AR indicate good flow properties, so for the preparation of the lipid matrix tablets, Cellactose® 80 as diluent (49%) and magnesium stearate as lubricant (1%) were used. The lipid matrix tablets (400mg, 12mm) were prepared applying a compression force of 500kg/cm3 during 5 seconds. The obtained tablets shows a glossy and homogeneous surface and a tablet breaking force of 6.2 + 0.36 Kp (n=5). Finally, a dissolution test was carried on considering the pharmacopoeialconditions indicated for IBP (n= 3). Results show a controlled release with a 50.58 + 10.87% IBP free at 6 hours.

    Time:

    Title: Fracture and Conductivity of FOF-ACF Film Considering Flexible Bending

    Chao-Ming Lin
    National Chiayi University, Taiwan

    Biography
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    Biography

    Chao-Ming Lin
    National Chiayi University, Taiwan

    Dr. Chao-Ming Lin received the M.S. degree and Ph.D. degree from the National Cheng Kung University, Taiwan, in 1993 and 1999, respectively, and both in mechanical engineering. He is currently with the Department of Mechanical and Energy Engineering, National Chiayi University, Taiwan, as a Professor with research interests in IC packaging, injection molding processing, electrically conductive adhesive/films, nanotechnology, MEMS, and polymer packaging composites. He had some publications in the areas of electronic packaging, nanotechnology, micro fluidics and polymer processing including more than 60 journal papers, more than 60 conference papers, more than 30 technical reports, and 4 patents.



    Abstract
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    Abstract

    Chao-Ming Lin
    National Chiayi University, Taiwan

    Flex-on-Film (FOF) packages consisting of PI flex with fine-pitch Cu circuits and ITO-coated PET films are bonded using Anisotropic Conductive Film (ACF). The electrical resistance of the packages is then evaluated under sequential static bending cycles. During the bonding process, the conductive particles in the ACF resin deform and fracture under the effects of the compression force and play a key role in determining the initial electrical conductivity of the package. The cyclic compression / tension stress produced in the subsequent bending tests prompts a propagation of the cracks in the conductive particles, and thus degrades the electrical performance of the package. In particular, the electrical resistance increases with an increasing number of bending cycles. Microscopic observations show that the higher electrical resistance is the result of a smaller overall contact area between the conductive ACF particles and the Cu electrode / ITO film due to fatigue crumbling of the particles. Keywords: Flex-On-Film, Anisotropic Conductive Film; Conductive Particle; Microscopic; Static Bending Cycles.

    Time:

    Title: Synthesis of Hyperbranched Polyglycerols using Ascorbic Acid as an Activator

    Ehsan Mohammadifar
    Freie University of Berlin, Germany

    Biography
    χ

    Biography

    Ehsan Mohammadifar
    Freie University of Berlin, Germany



    Abstract
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    Abstract

    Ehsan Mohammadifar
    Freie University of Berlin, Germany

    In this work, low molecular weight hyperbranched polyglycerols (LMPGs) are synthesized in bulk using ascorbic acid as an activator. Different molar ratios of glycidol and ascorbic acid were mixed and stirred at ambient conditions and LMPGs with different molecular weights, degree of branching and relative abundance of the structural units were obtained. According to spectroscopy data, ascorbic acid was not incorporated in the structure of polymer and plays the role of activating agent in the polymerization process. In this synthetic protocol, any other chemical reagent and organic solvents were not used. Therefore, products are free of toxic impurities and suitable for the future biomedical applications.

    Time:

    Title: Simulation of Spacecraft Charging and its Effects on Materials in Space

    Rasha Emara
    German University in Cairo, Egypt

    Biography
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    Biography

    Rasha Emara
    German University in Cairo, Egypt



    Abstract
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    Abstract

    Rasha Emara
    German University in Cairo, Egypt

    Spacecrafts orbiting the earth is subject to plasma environment consists of charged particles. These particles hit the spacecraft external surface and deposit charges leading to discharges and arcing which alter the thermal and electrical properties of material. Several numerical codes aiming at simulating spacecraft plasma interactions have been developed over the world. They aim at investigating the plasma dynamics, current emission/collection on spacecraft and spacecraft charging. This work will focus on studying the structure and characteristics of anodic coating for different samples of aluminum alloys used in space applications. Modeling and simulation of these samples under space plasma conditions will be investigated using the Spacecraft Plasma Interaction Software (SPIS) code.

    Time:

    Title: Study of the Structural, Electronic, Thermodynamic and Magnetic Properties of AgCr2Ga Heusler Alloys by First Principals Approachs

    Belasri Amina
    Laboratory of Magnetic Materials, Algeria

    Biography
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    Biography

    Belasri Amina
    Laboratory of Magnetic Materials, Algeria

    Belasri Amina student in 2nd year doctorate "PhD student" she was major of promos for 5 years of her study in specialty physical of materials. She did an internship for 1 month in the malizia in the field of nanotubes, participated in a lot of conferences in many countries like morocco and tunisia.



    Abstract
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    Abstract

    Belasri Amina
    Laboratory of Magnetic Materials, Algeria

    The purpose of this study is to exploit structural, electronic, magnetic and thermodynamic properties of the full Heusler Ag2CrGa compound using the method of calculation of linear Muffin-tin-orbital potential (FP-LMTO) in the L21 phase with the local approximations density (LDA), local spin density and the local spin (LSDA)density coupled(LSDA-couple). The calculation made on the structural properties such as modulus, pressure derivatives and electronic properties have enabled us to deduce the nature of this alloy which proved a metal. While the calculated magnetic properties has enabled us to evaluate the magnetic moment of the test compound Ag2CrGa and the magnetic moments of each constituent element of the latter. The calculated thermodynamic properties are apparent change in modulus, heat capacity and the Debye temperature [from 0 to 1600 °C].

    Time:

    Title: Advanced Intelligent Fuzzy MPPT Control Algorithm for Solar Systems

    Maissa Farhat
    American University of Ras Al Khaimah, UAE

    Biography
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    Biography

    Maissa Farhat
    American University of Ras Al Khaimah, UAE

    Dr. Maissa Farhat is currently an Assistant Professor in the Department of Electrical, Electronics, and Communications Engineering at the American University of Ras Al Khaimah (AURAK). She Received the Ph. D. degree in control engineering automatic and robotic from the University of the Basque Country, Spain and in electrical and computer engineering from the University of Gabes, Tunisia in 2015. Received the M.Sc degree in automatic and intelligent techniques from National School of Engineering of Gabes, Tunisia in 2011. Her research interests include power electronics, converters control and renewable.



    Abstract
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    Abstract

    Maissa Farhat
    American University of Ras Al Khaimah, UAE

    In recent years, Solar energy has become an alternative power supply as it is considered as a clean source of energy of great importance. Several researches and efforts have been focused on the photovoltaic (PV) systems efficiency improvement.This paper deals with an intelligent technique for theefficiency improvement and optimization of the PV control performances. A PV system topology incorporating maximum power point tracking controller (MPPT) is studied in this paper. To achieve this goal a special interest was focused fuzzy logic controller (FLC) that also was compared to the well-known P&O algorithm. This paper presents a detailed study of the MPPT regulatorin order to insure a high system performance which can be selected for practical implementation issue. A simulation work dealing with MPPT controller, a DC/DC Boost converter feeding a load is achieved. Significant extracted results are given to prove the validity of the proposed overall PV system control scheme.

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