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Growth and Characterization of CrK(SO4)2·12H2O Crystals Used in Magnetic Adiabatic Refrigerator
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Yuwei CHEN1, 2, Ping LIU1, Wang LIU1, 2, Chang WANG1, Wei DAI1, Jun SHEN1, Guochun ZHANG1, 2, Heng TU1, 2
Journal of the Chinese Ceramic Society | 2022, 50(12) : 3270 - 3275
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Journal of the Chinese Ceramic Society | 2022, 50(12): 3270-3275
• Research Articles •
Growth and Characterization of CrK(SO4)2·12H2O Crystals Used in Magnetic Adiabatic Refrigerator
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Yuwei CHEN1, 2, Ping LIU1, Wang LIU1, 2, Chang WANG1, Wei DAI1, Jun SHEN1, Guochun ZHANG1, 2, Heng TU1, 2
Affiliations
  • 1.Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
  • 2.Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China

    • CHEN Yuwei (1997-), female, Doctorial candidate. E-mail:

About Author:

CHEN Yuwei (1997-), female, Doctorial candidate. E-mail:

Published: 2022-12-20 doi: 10.14062/j.issn.0454-5648.20220528
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Paramagnetic salts perform satisfactorily in cryogenic refrigeration, and hydrated salt crystals are usually used as refrigerated materials at a rather low temperature. In this paper, a chromium potassium alum CrK(SO4)2·12H2O (CPA) single crystal with the size of 32 mm×32 mm×20 mm was grown by a slow cooling method. The relationship between the growth condition and crystal morphology was analyzed, and the thermal behavior, infrared spectrum, and magnetic performance of CPA crystal were also investigated. The results reveal that the CPA crystal exhibits a magnetocaloric effect up to 29.75 J·kg-1·K-1 in an applied magnetic field of 7 T at 2 K. A salt pill made by growing the CPA crystals on an array of copper wires in a sealed container was used in a two-stage single-shot adiabatic demagnetization refrigerator, obtaining a no-load temperature of 90 mK.

crystal growth  /  crystal morphology  /  paramagnetic materials  /  magnetocaloric effect
陈语葳, 刘萍, 刘旺, 王昌, 戴巍, 沈俊, 张国春, 涂衡. CrK(SO4)2·12H2O晶体的生长及其磁制冷性能. 硅酸盐学报, 2022 , 50 (12) : 3270 -3275 . DOI: 10.14062/j.issn.0454-5648.20220528
Yuwei CHEN, Ping LIU, Wang LIU, Chang WANG, Wei DAI, Jun SHEN, Guochun ZHANG, Heng TU. Growth and Characterization of CrK(SO4)2·12H2O Crystals Used in Magnetic Adiabatic Refrigerator[J]. Journal of the Chinese Ceramic Society, 2022 , 50 (12) : 3270 -3275 . DOI: 10.14062/j.issn.0454-5648.20220528
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Year 2022 volume 50 Issue 12
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Article Info
doi: 10.14062/j.issn.0454-5648.20220528
  • Receive Date：2022-06-29
  • Online Date：2026-10-20
  • Published：2022-12-20
Article Data
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History
  • Received：2022-06-29
  • Revised：2022-07-29
Funding
Affiliations
    1.Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
    2.Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China

Corresponding:

TU Heng (1982-), male, Ph.D., Associate Professor. E-mail:
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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