Fabrication of TiNi shape memory alloy thin films by current activated tip-based sintering (CATS)

Kee S. Moon; Mehul Patel; Khaled Morsi; Samuel K. Kassegne

doi:10.1117/12.880720

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28 April 2011 Fabrication of TiNi shape memory alloy thin films by current activated tip-based sintering (CATS)

Kee S. Moon, Mehul Patel, Khaled Morsi, Samuel K. Kassegne

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Proceedings Volume 7978, Behavior and Mechanics of Multifunctional Materials and Composites 2011; 79782B (2011) https://doi.org/10.1117/12.880720
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2011, San Diego, California, United States

Abstract

We report on the production of thin films of titanium nickelides (TiNi) shape memory alloy, prepared via Current- Activated Tip-based Sintering (CATS), a new localized powder sintering process. Mechanically alloyed equi-atomic TiNi powder was tip-sintered at varying currents and cycles of current exposure time. The effect of processing conditions on the developed localized microstructure and properties are discussed. The number of cycles of current exposure time and current magnitude were studied. Both number of cycles and current magnitude in general result in an increase micro-hardness and a reduction in residual porosity in the sintered thin films.

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Kee S. Moon, Mehul Patel, Khaled Morsi, and Samuel K. Kassegne "Fabrication of TiNi shape memory alloy thin films by current activated tip-based sintering (CATS)", Proc. SPIE 7978, Behavior and Mechanics of Multifunctional Materials and Composites 2011, 79782B (28 April 2011); https://doi.org/10.1117/12.880720

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