磁热效应和室温稀土磁制冷材料研究现状

材料导报, 2008, 22(11): 34-42.

磁热效应和室温稀土磁制冷材料研究现状

马建波 ^1, , 湛永钟 ^2, , 周卫平 ^3, , 黄国瑞 ^4, , 刘佑良 ^5, , 林栽汉 ^6,

1.广西大学物理科学与工程技术学院,有色金属材料及其加工新技术教育部重点实验室,南宁,530004

2.广西大学物理科学与工程技术学院,有色金属材料及其加工新技术教育部重点实验室,南宁,530004

3.广西大学物理科学与工程技术学院,有色金属材料及其加工新技术教育部重点实验室,南宁,530004

4.广西大学物理科学与工程技术学院,有色金属材料及其加工新技术教育部重点实验室,南宁,530004

5.广西大学物理科学与工程技术学院,有色金属材料及其加工新技术教育部重点实验室,南宁,530004

6.广西大学物理科学与工程技术学院,有色金属材料及其加工新技术教育部重点实验室,南宁,530004

基金项目: 广西研究生教育创新计划(2008105930805M48) 国家大学生创新实验计划(200709) 国家自然科学基金(50601006)

关键词：磁热效应 , 稀土 , 磁制冷 , 磁熵

Magnetocaloric Effect and Research Progress in Room Temperature Rare Earth Magnetic Refrigerant Materials

室温磁制冷技术具有环保、可靠性好、效率高等优点.被认为是一种很有前景的新型制冷技术.概述了磁性材料的磁热效应概念以及磁热效应大小的表征方法,详细介绍了目前Gd5Si2Ge2、La(Fesi)13、RECo2及RE2Fe17等系列化合物稀土磁制冷材料的研究现状,并简要对比和评价了不同材料的相关性能,展望了室温稀土磁制冷材料的发展前景.

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