制冷学报2025，Vol.46Issue(2)：90-97,8.DOI:10.12465/j.issn.0253-4339.2025.02.090
批量制备La-Fe-Si系磁热材料的磁热性能和制冷性能研究
Study of Magnetocaloric Properties and Refrigeration Performance for Batch Prepared La-Fe-Si Based Magnetocaloric Materials
摘要
Abstract
This study investigates the magnetocaloric properties and refrigeration performance of batch-prepared(La,Ce)(Fe,Mn,Si)13Hy alloys.After heat treatment and hydrogenation,the Curie temperatures of M1,M2,and M3 were 292.9 K,287.8 K,and 283.9 K,respectively,decreasing with higher Mn content.Arrott plots indicated an itinerant-electron metamagnetic transition.M2 exhibited the highest isothermal magnetic entropy change of 12.0 J/(kg·K)under a 2 T magnetic field,with a full width at half maximum of 11 K.Relative cooling capacities(RCP)were 110.2 J/kg,132.0 J/kg,and 110.0 J/kg for M1,M2,and M3,respectively.Adiabatic temperature changes measured under a 1.5 T magnetic field were 3.48 K,3.14 K,and 2.96 K for M1,M2,and M3,respectively.A maximum refrigeration temperature span of 16.9 K was achieved by cascading the alloys at an ambient temperature of 295 K.关键词
批量制备/(La,Ce)(Fe,Mn,Si)13Hy磁热材料/磁热性能/制冷性能Key words
batch preparation/(La,Ce)(Fe,Mn,Si)13Hy magnetocaloric materials/magnetocaloric properties/refrigeration performance引用本文复制引用
郭亚茹,高磊,王鹏宇,裴昊,黄焦宏,金培育,刘翠兰,程娟,张英德,李兆杰,戴默涵,张建平..批量制备La-Fe-Si系磁热材料的磁热性能和制冷性能研究[J].制冷学报,2025,46(2):90-97,8.基金项目
国家自然科学基金(52171187)资助项目.(The project was supported by the National Natural Science Foundation of China(No.52171187).) （52171187）
