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US-Turkey

The IIMEC has several collaborations with Turkish researchers and institutions. Dr. Tahir Cagin and Dr. Ibrahim Karaman are points of contact between the bilateral associations.

Dr. Cagin hosted faculty and students during 2011, and is planning to host one more faculty from Turkey during the summer 2012. This group initiated materials research projects and has published some of the work since August 2011.

 Dr. Cagin’s plans for 2012 are: 

  •  Visit Turkey and spend three weeks at Anadolu University. During this visit he will be the keynote speaker for 8th Nanotechnology Conference held in Ankara, and will deliver an invited talk at Statistical Mechanics Conference at Sabanci University.

  • Mr. Isa Erdem who is co-advised by Dr. Cagin will complete his Ph. D. studies in physics during this period.  Drs. Sevgi O. Kart and Hasan H. Kart will be doing research on magnetic shape memory alloys while at TAMU.

Benat Kockar/ Hacettepe University:

 Dr. Kockar’s group has been collaborating with other IIMEC participants, Dr. Ibrahim Karaman (Texas A&M University) and Dr. Tarak Ben Zineb (LEMTA – ESSTIN). During 2011 Dr. Kockar was able to publish two research papers with Dr. Karaman, and initiate two new collaborations on Ti-based Shape Memory Alloy, as follows:

  •  Dr. Tarak Ben Zineb, Lorraine University (LEMTA – ESSTIN) – Assist. Dr. Benat Kockar (Hacettepe University) Production, Characterization and Modelling of Porous TiNi Shape Memory Alloys, Granted by Science and Technology Agencies of France and Turkey

  • Dr. Ibrahim Karaman (Texas A&M University)-Assist. Dr. Benat Kockar (Hacettepe University) Enhancing the Mechanical Behavior of TiNb Shape Memory Alloys.

A Memorandum of Understanding between Texas A&M University and Hacettepe University was signed to enhance the education and human resource development proposed by the IIMEC.

 Dr. Kockar’s plans for 2012 are:

  • Have at least 2 Mechanical Engineering students from Hacettepe University attend the next Winter School on Computational Modelling in US.

  • Host at 2 students in Smart Micro/Nano Materials Laboratory in Mechanical Engineering Department of Hacettepe University.

Sevgi Ozdemor Kart/Pamukkale University:

Dr. Kart has been collaborating with several scholars from Turkey, such as, Dr. Ülkü Bayhan  (Mehmet Akif University, Art & Science Faculty, Department of Physics, Burdur, Turkey), Dr. Murat Sari (Pamukkale University, Art & Science Faculty, Department of Mathematics, Denizli, Turkey), Dr. Mehmet Karakus (Pamukkale University, Art & Science Faculty, Department of Mathematics, Denizli, Turkey), Dr. Hasalettin Deligöz (Pamukkale University, Art & Science Faculty, Department of Chemistry, Denizli, Turkey), Dr. Metin Ak (Pamukkale University, Art & Science Faculty, Department of Chemistry, Denizli, Turkey), Dr. Hasan Hüseyin Kart (Pamukkale University, Art & Science Faculty, Department of Physics, Denizli, Turkey) and Dr. Cem Sevik (Anadolu University, Art & Science Faculty, Department of Materials Science and Enginering, Eskisehir, Turkey).

The accomplishments pointed by these collaborations made in Pamukkale University and Dr. Tahir Çagin (Texas A&M University, Department of Chemical Engineering) are:

  • Completion of a master thesis titled as “Molecular dynamics study of core-shell metallic nanoparticles,” Serkan Kaya, graduate student; Sevgi Özdemir Kart, Assist. Prof., Tahir Cagin, Prof.

  •  Completion of a research paper, which was submitted to an international journal,  titled as “Mechanical and electronic properties of the semiconductor materials of SnO and SnO2,” Isa Erdem, PhD student, Hasan Hüseyin Kart, Associate Prof., Tahir Cagin, Prof.

  •  Completion of a master thesis titled as “Thermodynamical properties of the metallic nanoparticles: A molecular dynamics  study,” Hüseyin Yildirim, graduate student, Hasan Hüseyin Kart, Associate Prof. , Tahir Cagin, Prof.

  • Completion of a dissertation “Structural and mechanical properties of NiFeGa Magnetic shape memory alloys are obtained for both austenitic and martensitic phases,” by Cengiz Soykan, Ph.D. Student, Sevgi Özdemir Kart, Assist. Prof. , Tahir Cagin, Prof. 

  •  Master thesis, “Physical properties of Cu based ordered alloys are obtained” by Çigdem Güçlü, graduate student; Ülkü Bayhan, Assist. Prof.; Sevgi Özdemir Kart, Assist. Prof.; Tahir Cagin, Prof.

Future plans of Dr. Sevgi Ozdemor Kart for collaboration:

  • Magnetic and structural stability properties of non- stoichiometric NiFeGa MSMA’s (Cengiz Soykan, PhD Student; Sevgi Özdemir Kart, Assist. Prof.; Cem Sevik, Prof..; Tahir Cagin, Prof.)

  • The effect of the geometric shapes on the thermal behavior of metallic nanoparticles (Kader Duman, graduate student, Murat Sari, Assist. Prof., Sevgi Özdemir Kart, Assist. Prof., Hasan Hüseyin Kart, Associate Prof.,  Tahir Cagin, Prof.)

  • Ab-initio calculations of the some chemical molecules (Alpaslan Bayraktar, PhD student, Mesut Kest, graduate student, Ebru Tanboga, graduate student, Sevgi Özdemir Kart, Assist. Prof., Hasan Hüseyin Kart, Associate Prof., Hasalettin Deligöz, Associate Prof., Mehmet Karakus, Associate Prof., Metin Ak, Associate Prof.)

Last summer Dr. Balog, with travel support through the IIMEC faculty exchange program, collaborated with Dr. Turan during his visit to the Solar Energy Research and Development Center (GÜNAM) at the Middle East Technical University (METU), Ankara, Turkey. Dr. Balog presented an invited seminar entitled "Advanced Power Electronics for Grid-Integration and Energy Harvesting for Flexible/Conformal Photovoltaic Materials" in which he discussed open research questions pertaining to best modes of uses for future flexible thin film photovoltaic material to realize the full benefit of this emerging energy conversion material. Drs. Turan and Balog discussed the synergies of their respective work and agreed to follow up at the IIMEC annual meeting in College Station. During the annual meeting, Drs. Turan and Balog drafted the outline of a joint proposal to TUBITAK, which was ultimately submitted on April 30, 2012. Funding was requested to continue their nascent collaboration and cross-train each other on their respective technologies with the goal of a joint NSF/ TUBITAK proposal submission in the next 9 to 12 months.  Dr. Balog plans a second visit this summer to gather experimental data needed as preliminary results for the intended proposal.

Turkey, while still very much an agricultural economy, renewable energy – solar in particular – is beginning to generate significant attention as a viable and cost-effective energy source. Recent advances in the material sciences, pioneered by Dr. Turan, represents transformational advances in science of direct photon-to-electron energy conversion. While necessary, they alone are not sufficient to create next-generation direct-to-electricity systems. Power electronics is the technology that conditions and converts electricity from the native form of generation to a form useful to consume. A holistic collaboration will bring together researchers to study the end-to-end energy system. Thus collaborative scholarly exchange and interdisciplinary research between researchers in the material science and researchers in the power electronics aspects of photovoltaic energy is critical to ensure the best use to take full advantage of properties of photovoltaic materials as efficient and effective electrical energy source.

 Flexible PV material is emerging as a viable alternative to the traditional planar PV modules. Dr. Balog’s early work suggests that the extra degrees of freedom of the physical shape enable the ability to harvest more total energy for the same footprint than with rigid flat module. However, these non-planar geometries require the close coordination with the design of the power electronics converters to realize the full potential. It is expected that advancement will be needed in the power electronics to create a low-cost, highly efficient alternative energy system. The IIMEC has been instrumental in connecting Drs. Balog and Turan and nurturing the early-stage collaboration necessary to generate preliminary data and vet concepts prior to submission of joint research proposals. Based in part on this collaboration, Dr. Balog has given a series of tutorials in the IEEE Energy Conversion Conference and Exposition (September 2011) and the IEEE Photovoltaic Specialist Conference (June 2012) on power electronics and balance of system requirements for non-planar photovoltaic arrays. He has also begun to publish early state concepts and preliminary results, see publication list.