Method for producing magnetic refrigeration material, and magnetic refrigeration material

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United States of America Patent

PATENT NO 11806782
APP PUB NO 20230302532A1
SERIAL NO

18173140

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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There are provided a method for producing a magnetic refrigeration material whose magnetic transition temperature can be adjusted with high accuracy, and a magnetic refrigeration material whose magnetic transition temperature has been adjusted with high accuracy. The magnetic refrigeration material production method of the present invention includes the steps of: preparing a first predetermined magnetic refrigeration material and a second predetermined magnetic refrigeration material which differs from the first magnetic refrigeration material; and mixing the first magnetic refrigeration material and the second magnetic refrigeration material to obtain a third magnetic refrigeration material. The content of the first magnetic refrigeration material and the content of the second magnetic refrigeration material in the third magnetic refrigeration material are determined by the magnetic transition temperatures of the first magnetic refrigeration material and the second magnetic refrigeration material and by a target magnetic transition temperature of the third magnetic refrigeration material. The magnetic refrigeration material of the present invention includes at least a first predetermined magnetic refrigeration material and a second predetermined magnetic refrigeration material which differs from the first magnetic refrigeration material. The absolute value of the difference between the magnetic transition temperature of the present magnetic refrigeration material and a target magnetic transition temperature is 0.7 K or less.

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Patent Owner(s)

Patent OwnerAddress
SHIN-ETSU CHEMICAL CO LTDTOKYO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fukuda, Junya Echizen, JP 23 174
Hirota, Koichi Echizen, JP 103 1054
Kume, Tetsuya Echizen, JP 29 89
Nakamura, Hajime Echizen, JP 164 2612

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