Amir Motallebzadeh

Dr. Amir Motallebzadeh received his Ph.D. in Metallurgical and Materials Engineering from Istanbul Technical University in 2015. During his Ph.D., he studied microstructural characterization and mechanical properties of hardfacing coatings at high temperatures. In 2016, he joined Koç University Surface Science and Technology Center (KUYTAM) as a senior researcher. His PhD thesis focused on the effect of different alloying elements and ceramic carbide particles on microstructure, high temperature oxidation behaviour and mechanical properties of plasma transferred arc (PTA) deposited cobalt-based hardfacing alloys. Over the past four years, he has been working on bulk and thin films of high entropy alloys (HEAs) for high temperature and biomedical applications. In his main governmentally funded projects, the bulk and thin film of HEAs have been produced and deposited by sputtering magnetron methods on metallic biomaterials and all microstructural and phase characterization were accomplished. Also, their mechanical properties were evaluated by nanoindentation. Promising results have been obtained from characterizations, mechanical testing, and basic biocompatibility experiments. Also, within the international collaboration with Dr. Sheng Guo at Chalmers University of Technology, refractory high entropy alloys (RHEAs) for high temperature applications were successfully designed, arc-melted and characterized. The findings of this research were published in the reputable journal. In addition, during past two years he had a collaboration with research groups that actively work on synthesizing and characterization of metallic and ceramic matrix composite by spark plasma sintering (SPS) technique which can rapidly consolidate the powders to high density by applying pressure and passing electric pulse current within short soaking time owing to rapid heating and cooling rates.