(State Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications, Department of Materials Science and Engineering,Zhejiang University, Hangzhou 310027, China)
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DOI:
10.7502/j.issn.1674-3962.2012.07.04
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Abstract:
Giant magnetostrictive material (GMM) is a kind of advanced energy transfer material, which is of importance for applications in hightechnical devices. We firstly present in this work the characteristics and developments of TbDyFe GMMs. A review is then given on our recent activities in magnetically annealed TbDyFe GMMs with <110> crystal orientation. Both experimental and theoretical studies demonstrate that magnetic annealing is capable of tuning the initial magnetic moment orientation and hence improving the magnetomechanical performance through changing the moment movement processes. Evidences including magnetic force microscopy (MFM) images, magnetostriction, magnetic induction, stressstrain curves and domain rotation simulation are provided.