Rotating magnetocaloric effect and thermal transport properties in sintered Nd_0.8Pr_0.2Co₅ alloy

Mingxiao Zhang^1,2，Kun Wang^1,2，Jian Liu^1,2，Lei Liu^1,2，Aru Yan^1,2

1. CAS Key Laboratory of Magnetic Materials and Devices,and Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology,Ningbo Institute of Materials Technology and Engineering,Chinese Academy of Sciences2. University of Chinese Academy of Sciences

摘 要：We report microstructure,magnetocaloric effect and thermal transfer properties of highly orientated Nd_0.8Pr_0.2Co₅ alloy prepared by powder metallurgical processing.Two spin-reorientation transitions of easy magnetization direction,easy plane to easy cone at T_SR1=206 K,easy cone to easy axis at T_SR2=242 K,are observed.The present textured alloy exhibits a rotating entropy change of 2.6 J/（kg·K）and refrigerant capacity of 155 J/kg under a magnetic field of 2 T,and high thermal conductivity of 11 W/（m·K）.The sintered Nd_0.8Pr_0.2Co₅ alloy with good combination of excellent magnetocaloric and thermal transfer properties are promising for scientific research and practical applications as room-temperature rotating magnetic refrigeration materials.

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