Study of Magnetocaloric Properties and Refrigeration Performance for Batch Prepared La-Fe-Si Based Magnetocaloric Materials

Guo Yaru; Huang Jiaohong; Jin Peiyu; Liu Cuilan; Cheng Juan; Zhang Yingde; Li Zhaojie; Dai Mohan; Zhang Jianping; Gao Lei; Wang Pengyu; Pei Hao

doi:10.12465/j.issn.0253-4339.2025.02.090

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Study of Magnetocaloric Properties and Refrigeration Performance for Batch Prepared La-Fe-Si Based Magnetocaloric Materials

更新时间：2025-04-15

- Study of Magnetocaloric Properties and Refrigeration Performance for Batch Prepared La-Fe-Si Based Magnetocaloric Materials
- Journal of Refrigeration Vol. 46, Issue 2, Pages: 90-97(2025)
- 作者机构：
  
  包头稀土研究院　白云鄂博稀土资源研究与综合利用全国重点实验室　包头　 014030
- 作者简介：
  
  Huang Jiaohong, male, Ph. D., professor level senior engineering, State Key Laboratory of Baiyunobo Rare Earth Resource Researches and Comprehensive Utilization, Baotou Research Institute of Rare Earths, 86-13604720121, E-mail: jiaohongh@163.com. Research fields: development and application of room temperature magnetic refrigeration materials, design and development of room temperature magnetic refrigerator, design and assembly of permanent magnetic field.
- 基金信息：
  
  National Natural Science Foundation of China(52171187)
- DOI：10.12465/j.issn.0253-4339.2025.02.090
  CLC： TB61⁺1;TB61⁺2;O482.6
- Received：25 October 2023，
  
  Revised：09 January 2024，
  
  Accepted：2024-01-31，
  
  Published：16 April 2025
- 稿件说明：
移动端阅览
Guo Yaru, Huang Jiaohong, Jin Peiyu, et al. Study of Magnetocaloric Properties and Refrigeration Performance for Batch Prepared La-Fe-Si Based Magnetocaloric Materials[J]. Journal of refrigeration, 2025, 46(2): 90-97.
DOI：

Guo Yaru, Huang Jiaohong, Jin Peiyu, et al. Study of Magnetocaloric Properties and Refrigeration Performance for Batch Prepared La-Fe-Si Based Magnetocaloric Materials[J]. Journal of refrigeration, 2025, 46(2): 90-97. DOI： 10.12465/j.issn.0253-4339.2025.02.090.

摘要

使用中频熔炼炉批量制备公斤级（La，Ce）（Fe，Mn，Si）

磁热材料，对合金的磁热性能和制冷性能进行了研究。结果表明：合金的居里温度随Mn含量的增加而降低，分别为292.9、287.8和283.9 K。在2 T外加磁场下，合金最大等温磁熵变达到12.0 J/（kg·K），半峰宽最大为11 K，3种合金的相对制冷能力分别为110.2、132.0和110.0 J/kg。使用课题组自制的磁热效应测量仪，得到变化磁场为1.5 T时，3种合金的最大绝热温变分别为3.48、3.14和2.96 K。将3种合金分层装入主动式磁回热器中，在课题组自制的磁制冷样机上测试制冷性能，当设定环境温度为295 K，可实现16.9 K的制冷温跨。

Abstract

This study investigates the magnetocaloric properties and refrigeration performance of batch-prepared (La

Ce)(Fe

Si)

alloys. After heat treatment and hydrogenation

the Curie temperatures of M1

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

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

and M3

respectively. A maximum refrige

ration temperature span of 16.9 K was achieved by cascading the alloys at an ambient temperature of 295 K.

关键词

Keywords

references

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