Effect of particles size on the magnetocaloric properties in Gd 5Si2Ge2

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成果类型：

期刊论文

作者：

Zhang, Liqiang;Zeng, Hong

通讯作者：

Zeng, H.(zonghong78@live.cn)

作者机构：

[Zhang, Liqiang] College of Mechanical and Electrical Engineering, Central South University of Forestry and Technology, Changsha, Hunan, 410004, China

[Zeng, Hong] Advance Technology and Materials Co., Ltd., China Iron and Steel Research Institute Group, Beijing 100081, China

通讯机构：

Advance Technology and Materials Co., Ltd., China Iron and Steel Research Institute Group, China

语种：

英文

关键词：

Cooling;Gadolinium alloys;Magnetic bubbles;Materials properties;Meteorology;Particle size;Powders;Refrigerants;Silicon alloys;As cast alloy;Caloric effects;Magnetic entropy change;Magnetic refrigerant materials;Magnetocaloric properties;Particles sizes;Processing condition;Relative cooling power;Magnetocaloric effects

期刊：

International Journal of Microstructure and Materials Properties

ISSN：

1741-8410

年：

2013

卷：

期：

4-5

页码：

325-332

DOI：

10.1504/IJMMP.2013.057069

机构署名：

本校为第一机构

院系归属：

机电工程学院

摘要：

In this study, the effect of particle size on the magneto-thermal properties of Gd5Si2Ge2 alloys was investigated. It is found that the alloy powders obtained via the milled processing conditions possess distinctly Magnetocaloric Effects (MCEs). The magnetic entropy change (ΔSM) of the milled Gd 5Si2Ge2 alloy powders for the 38.5-50 um arrives the maximum value of -ΔSM = 9.06 J·kg -1·K-1 for magnetic field change under 2.0 Tesla. The estimated Relative Cooling Power (RCP) for the 50-74 um powders is around 155.94 J kg-1, which increases 28%...

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Effect of particles size on the magnetocaloric properties in Gd 5Si2Ge2

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