Textured polymer bonded composites with Ni-Mn-Ga magnetic shape memory particles

被引：109

作者：

Scheerbaum, N. ^{[1
]}

Hinz, D. ^{[1
]}

Gutfleisch, O. ^{[1
]}

Mueller, K.-H. ^{[1
]}

Schultz, L. ^{[1
]}

机构：

[1] IFW Dresden, Met Res Inst, D-01171 Dresden, Germany

来源：

ACTA MATERIALIA | 2007年 / 55卷 / 08期

关键词：

magnetic shape memory alloys; Heusler alloys; martensitic phase transformation; polymer matrix composites;

D O I：

10.1016/j.actamat.2006.12.008

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Textured polymer bonded composites were prepared from polyester resin and Ni-Mn-Ga magnetic shape memory (MSM) particles. Single-crystalline MSM particles similar to 60 mu m in diameter were obtained by mortar grinding melt-extracted and annealed Ni50.9Mn27.1Ga22.0 (at.%) fibres. The crystal structure of the martensite is tetragonal (5 M). The application of a magnetic field during the curing process of the polyester matrix yields an alignment of the MSM particles. Mechanical compression of the composites leads to easy magnetization behaviour in the compressed direction and harder magnetization behaviour in the perpendicular directions of the composites. This behaviour is attributed to stress-induced twin boundary motion within the MSM particles. (C) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：2707 / 2713

页数：7

共 21 条

[1] Structural, magnetic and anisotropic properties of Ni2MnGa melt-spun ribbons [J].