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Rajesh Kitey, PhD (Auburn University)
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- Category: Aerospace Engineering
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Assistant Professor
Research Interests: Solid Mechanics, Fracture Mechanics, Experimental Stress Analysis, Optical Metrology, Mechanics of Thin Films, Composite Materials, Finite Element and Boundary Element Methods
E-mail: kitey[AT]iitk.ac.in
Ph: +91-512-259-7060 (O)
Website: http://home.iitk.ac.in/~kitey
The interfacial properties, in particular interfacial adhesion and interfacial fracture toughness govern the mechanical integrity of thin film devices, inevitably subjected to repeated thermo mechanical loading while in operation. The laser spallation method proves better than contemporary interfacial strength characterization techniques due to its ability to dynamically load the interface in non-contacting fashion by employing short duration laser induced stress pulses (at strain rate ~ 107). The laser spallation setup will be installed to measure tensile and mixed-mode interfacial strength in thin film specimens, fabricated using polymer, low-k, metallic and ceramic films. The reliability testing and analysis will be conducted on multilayer thin film equipments such as solar cells, microelectronics devices, and MEMS and NEMS devices.