无约束薄膜在磁场下呈现负的磁致应变，在1.3T磁场下，其最大应变值可达-0.008%，并且可以完全恢复。
The freestanding thin films exhibit a recoverable shrink magnetic-field-induced strain of about-0.008% at the magnetic field of 1.3T.
超磁致伸缩材料作为一种新型功能材料具有应变大，输出力大，响应速度快，能量转换效率高等特点。
Giant magnetostrictive material is a new type of function material with giant strain, great output force, high response speed and strong energy transition efficiency.
基于磁致伸缩的概念，采用磁致伸缩应变模型，对横向磁场中铁磁体的磁弹性屈曲的临界磁场这一问题进行了研究。
Based on the idea of magnetic strain, the model of magnetic strain was used to analysis the magnetoelastic buckling of cantilevered ferromagnetic plate in transverse magnetic field.
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