SGER: Design of Active Surface based on Ferromagnetic Shape Memory Alloys

0303536泰亚SGER奖支持使用铁磁形状记忆合金设计机械活动表面的研究。FEPD合金的表面形态可在奥氏体相和磁场关闭时对应的平面和马氏体相和磁场开启时对应的锯齿状之间切换。这种形态变化可能对微型系统的刹车或推进系统的设计有潜在的帮助。这项工作将需要开发具有最佳马氏体孪晶形态的合适的单晶片，测试切换的耐久性和速度，以及微型机械的初步试用。这项工作的更广泛影响是，它可能导致开发一种新方法，为大量具有工业重要性的MEMS和其他微型系统和设备提供微型运动或制动。*

0303536TayaAn SGER award supports research on the design of mechanically active surfaces using ferromagnetic shape memory alloys. The FePd alloy can be made to switch surface morphology between flat, corresponding to the austenite phase and the magnetic field turned off, and sawtooth form, corresponding to the martensite phase and the magnetic field turned on. The morphology change may potentially be useful in design of brakes or propulsion systems for miniature systems. The work will entail development of suitable single crystal plates with optimal martensite twin morphology, testing for durability and speed of switching, and initial tryouts in miniature mechanisms.The broader impact of the work is that it could result in development of a new method for providing miniature movement, or braking for a large number of industrially important MEMS and other miniature systems and devices.***