室温磁致冷工质的选用原则及制备技术  

Selection Principle and Preparation Methods of Working Substance for Magnetic Refrigeration at Room Temperature

作　　者：钟喜春[1] 曾德长[1] 刘正义[1] 魏兴钊[1] 

机构地区：[1]华南理工大学机械工程学院,广州510640

出　　处：《材料科学与工程》2002年第3期441-444,421,共5页Materials Science and Engineering

基　　金：广东省自然科学基金重点项目 (C0 13 0 0 3 );广东省稀土办重点项目 ( 10 2 -B2 5770 );广东省高教厅重点项目 ( 10 2 -B2 4480 );中国教育部骨干教师计划项目 ( 3 0 5-D40 13 0 )

摘　　要：本文对近年来在制冷界研究相当活跃的磁致冷工质 ,尤其是室温磁致冷工质———铁磁材料 ,在外加磁场中的热力学特性进行了分析、讨论 ,并在此基础上总结了选取室温磁致冷工质的理论依据和原则。本文介绍了室温磁致冷工质的制备方法 ,特别是系列工质复合法 。Thermodynamic properties of magnetic refrigeration substance under external magnetic field, especially of ferromagnetic materials for magnetic refrigeration at room temperature are reviewed in this paper. It is summarized that the theoretic basis and principle is used to select a working substance selection for magnetic refrigeration at room temperature,Preparation methods of magnetic refrigerant at room temperature are presented at the same time, especially composite method of series of working substances. At last, the research direction is provided for the future.

关 键 词：室温磁致冷工质 磁热效应 磁熵变 制备方法 铁磁材料 

分 类 号：TB64[一般工业技术—制冷工程]