A new type of La(Fe,Si)13-based magnetocaloric composite with amorphous metallic matrix

被引：63
|
作者：
Krautz, Maria [1 ]
Funk, Alexander [1 ]
Skokov, Konstantin P. [2 ]
Gottschall, Tino [2 ]
Eckert, Juergen [1 ,3 ]
Gutfleisch, Oliver [2 ]
Waske, Anja [1 ]
机构：
[1] IFW Dresden, Inst Complex Mat, D-01171 Dresden, Germany
[2] Tech Univ Darmstadt, D-64287 Darmstadt, Germany
[3] Tech Univ Darmstadt, Inst Mat Sci, D-01069 Darmstadt, Germany
来源：
SCRIPTA MATERIALIA | 2015年 / 95卷
关键词：
Metal matrix composites; Hot pressing; Three-dimensional tomography; Magnetocaloric effect; MAGNETIC REFRIGERANTS; ENHANCEMENT; TRANSITION; LA(FE;
D O I：
10.1016/j.scriptamat.2014.10.002
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
We report on novel magnetocaloric composites based on La(Fe,Si)(13) particles in an amorphous metallic matrix. Hot compaction at the glass transition temperature, T-g, of the matrix prevents crack formation as commonly occurs in conventional hot-compacted La(Fe,Si)(13) material. This damage can affect the magnetocaloric performance. The approach in the present paper shows that the La(Fe,Si)(13) particles stay intact due to the buffer-effect of the amorphous and ductile matrix at T-g. Therefore, the magnetocaloric properties of the composites are almost independent of the compaction pressures. (C) 2014 Published by Elsevier Ltd. on behalf of Acta Materialia Inc.
引用
收藏
页码：50 / 53
页数：4
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