M.Yıldız,"Materials Processing:Experimental&Computational Aspects"
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  • M.Yıldız,"Materials Processing:Experimental&Computational Aspects"

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Faculty of Engineering and Natural Sciences
FENS SEMINARS

Materials Processing: Experimental and Computational Aspects

Mehmet Yıldız, University of Victoria, Canada

Abstract:
Semiconductors and advanced polymer-based composite materials are two important members of advanced engineering materials which are widely required in electronic, thermo-photovoltaics, sensing and medical applications, and in aircraft and automotive industries, respectively. Manufacturing processes of these materials, in general, have a complex and non-linear interactions of fluid flow, heat and mass transfers. To have a clear understanding of experimental parameters in order to optimize experimental conditions, mathematical modeling of transport phenomena in materials processing has become indispensable and complementary research.

Bulk semiconductor materials are produced through a process called crystal growth. In this presentation, experimental and computational aspects of the growth of SiGe single crystals from a liquid solution by a technique referred to as Liquid Phase Diffusion will be presented. As well, the effect of static and rotating magnetic fields on the growth process of SiGe single crystals by liquid phase diffusion (LPD) will be addressed.

One of the manufacturing processes particularly suitable to manufacture composite components for applications in aircraft structures is Resin Transfer Molding (RTM). In this presentation, experimental research currently being conducted on manufacturing, process monitoring and structural health management of polymer-based advanced composite structures will be presented. Simulation of fluid flow with a meshless Lagrangian particle method, widely referred to as Smoothed Particle Hydrodynamics (SPH) with the objective of studying transport phenomena (resin flow through porous media) in the RTM process will be addressed.

Brief CV:
Dr. Yıldız graduated from the Department of Metallurgical Engineering in 1996 at Yıldız Technical University. He completed his Master degree in 2000 in the Department of Metallurgical and Materials Engineering at Istanbul Technical University while he was working. He received his PhD degree in 2005 in the Department of Mechanical Engineering at University of Victoria, BC, Canada. His PhD research was in the area of experimental and computational materials processing, and transport phenomena (heat, mass and momentum transfer in multicomponent mixtures) with application to semiconductor crystal growth. Upon the completion of his PhD study, he started working as a research associate and instructor in the same department. His current research is on manufacturing, process monitoring, and structural health management of polymer-based composite materials.     

December 26, 2006, 13:40, FENS L063