| 简介 |
PROBLEM TO BE SOLVED : To provide a magnetic refrigeration apparatus magnetic working substance and a magnetic refrigeration apparatus that can produce characteristics close to Gd by having the main constituent element as Mn, and also makes a production cost significantly low because of the non-use of rare-earth and thus can widely be applicable to consumer field.SOLUTION : A magnetic refrigeration apparatus magnetic working substance is characterized by a mixture of a main phase represented by the chemical formula MnMC (M=one or more than one elements selected from a group consisting of Sn, Al, Ga, Zn, Cu, Ag and Ni, -0.2≤x≤0.2) and an auxiliary phase of C. Also a magnetic refrigeration apparatus is characterized to comprise : an AMR head packed with magnetic refrigeration apparatus magnetic working substance; a magnet carrying out the application of magnet to the magnetic refrigeration apparatus magnetic working substance and the removal therefrom; a cold heat release unit thermally connected to a low-temperature end heat exchange unit; and a high heat release unit thermally connected to a high-temperature end heat exchange unit. |
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