Temperature dependence of martensite structure and its effect on magnetic-field-induced strain in Ni2MnGa magnetic shape memory alloys

被引：36

作者：

Glavatska, N

Mogilniy, G

Glavatsky, I

Danilkin, S

Hohlwein, D

Beskrovnij, A

Söderberg, O

Lindroos, VK

机构：

[1] Inst Met Phys, UA-03680 Kiev 142, Ukraine

[2] Hahn Meitner Inst Berlin GmbH, D-14109 Berlin, Germany

[3] Joint Inst Nucl Res, Dubna 141980, Russia

[4] Aalto Univ, Espoo 02015, Finland

来源：

JOURNAL DE PHYSIQUE IV | 2003年 / 112卷

关键词：

D O I：

10.1051/jp4:20031041

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

structure in two Ni2MnGa alloys, that exhibit large magnetic field induced strain in martensite phase, was studied with neutron diffraction in temperature range 4K-354K. It is found that lattice parameters in martensite notably change with temperature. The magnetic field induced strain value decreases/rises with the rise/decrease of temperature according to the change of (1-c/a) in martensite phase. The critical value of the magnetic field for activation of the twin's boundary motion decreases with increasing temperature.

引用

页码：963 / 967

页数：5

共 9 条

[1]

GLAVATSKA N, 2001, P EMMA 2000 MAT SCI, V373, P341

[2]

GLAVATSKA N, 2001, IN PRESS MAT SCI FOR

[3] Magnetostriction of martensite [J].