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

页码：50 / 53

页数：4

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