Thin film shape memory alloys and microactuators

Y.Q. Fu, J.K. Luo, A.J. Flewitt, W.M. Huang, S. Zhang, H.J. Du, W.I. Milne
2009 International Journal of Computational Materials Science and Surface Engineering  
For Micro-electro-mechanical System (MEMS) applications, TiNi-based thin film Shape Memory Alloys (SMAs) possess many desirable properties, such as high power density, large transformation stress and strain upon heating and cooling, superelasticity and biocompatibility. In this paper, recent development in TiNi-based thin film SMA and microactuator characterisation is mainly focused on crystal nucleation and growth during annealing, film thickness effect, film texture, stress induced surface
more » ... ief, wrinkling and trenches as well as Temperature Memory Effect (TME). The microactuator applications are mainly focused on microvalve and microcage for biological applications, micromirror for optical applications and data storage using nanoindentation method.
doi:10.1504/ijcmsse.2009.027483 fatcat:z7jhv2n4z5gprnsswufjpl5wvi