Giant magnetocaloric effect in Tm-based bulk metallic glasses

被引：46

作者：

Huo, J. T. ^{[1
]}

Zhao, D. Q. ^{[1
]}

Bai, H. Y. ^{[1
]}

Axinte, E. ^{[2
]}

Wang, W. H. ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China

[2] Gheorghe Asachi Tech Univ Iasi, Fac Machine Mfg & Ind Management, Iasi 700500, Romania

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 2013年 / 359卷

基金：

中国国家自然科学基金;

关键词：

Metallic glass; Entropy change; Giant magnetocaloric effect; Candidate for magnetic refrigerants; MAGNETIC-ENTROPY CHANGE; ROOM-TEMPERATURE;

D O I：

10.1016/j.jnoncrysol.2012.09.020

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We report that the maximum magnetic entropy change Delta S-m, of Tm39Ho16Co20Al25 metallic glass can reach 18.3 Jkg(-1) K-1 under 5 T, which is larger than that of any previously reported metallic glasses and comparable with that of the giant magnetocaloric effect material Gd5Si2Ge2 compound. Even under low magnetic field of 2 T, the Delta S-m of the glass can reach 10.3 Jkg(-1) K-1 which is even larger that of most of other metallic glasses under 5 T. The excellent magnetocaloric effect and refrigerant efficiency together with unique mechanical and physical properties of the metallic glasses indicate they are promising candidate for magnetic refrigerants. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：1 / 4

页数：4