磁热效应及磁制冷材料的选择依据  

Magnetocaloric Effect and Selection Principle of Magnetic Refrigeration Materials

作　　者：吴忠旺[1] 徐来自[2] 黄焦宏[2] 刘金荣[2] 金培育[2] 邱巨峰[2] 

机构地区：[1]内蒙古科技大学材料科学与工程学院,内蒙古包头014010 [2]包头稀土研究院,内蒙古包头014030

出　　处：《稀土》2007年第4期90-92,共3页Chinese Rare Earths

摘　　要：从热力学基本理论出发,解释了磁制冷材料的磁热效应,并推导出等温熵变ΔSm和绝热温变ΔTad的基本公式,为选择合适的磁制冷材料提供了理论依据。Magnetocaloric effect in magnetic refrigeration has been analyzed by using thermodynamic theory. The formulae of magnetic entropy change ｜ΔSm｜ and adiabatic temperature change ΔTad have been deduced. The selection principle of magnetic refrigerant materials has been given.

关 键 词：磁制冷材料 磁热效应 绝热温变 

分 类 号：O482.5[理学—固体物理]