Magnetization changes in Ni-Mn-Ga magnetic shape memory single crystal during compressive stress reorientation

被引：23
|
作者：
Straka, L
Heczko, O
机构：
[1] Aalto Univ, Biomed Engn Lab, FI-02015 Espoo, Finland
[2] Aalto Univ, Mat Sci Lab, FI-02015 Espoo, Finland
来源：
SCRIPTA MATERIALIA | 2006年 / 54卷 / 09期
关键词：
Ni-Mn-Ga; shape memory alloys (SMA); magnetic properties;
D O I：
10.1016/j.scriptamat.2006.01.028
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Magnetization as a function of strain of a Ni48.5Mn30.8Ga20.7 single crystal during 9 MPa compressive loading test was obtained by means of vibrating coil magnetometry for different static magnetic fields up to 1.15 T. The dependency is monotonic, nonlinear and shows a small hysteresis. Maximum reversible change of magnetization is 30% for a 0.6 T field, and irreversible change of about 50% is observed for a 0.4 T field. The magnetization dependencies determined are compared with a simple linear model. (c) 2006 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：1549 / 1552
页数：4
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