摘要
本文对熔体纺丝合金纤维的磁热性能和磁制冷应用的研究进展进行了综述,总结了不同种类具有磁热性能的合金纤维在磁场驱动下能够产生的磁熵变最大值、半高宽和磁制冷能力。概述了熔体纺丝法的基本原理和操作过程,以及小尺寸纤维形态在实际磁制冷机中的应用优势,并重点介绍了将合金制备成纤维形态能够解决大块合金中存在的相关问题,描述了不同种合金纤维产生磁热效应的原理,阐明了纤维相变特征对制冷温度区间、磁熵变及磁热效应的影响机制,最后总结了合金纤维在活性蓄热器中的制冷功率和性能系数的研究情况,简述了将小尺寸合金纤维大批量应用于实际磁制冷装置以解决该类装置制冷效率低、制冷功率小的可行性。
This paper concentrates on the progress of the magnetocaloric effect of alloy microwires prepared by melt-extraction method, and summarizes the maximum magnetic entropy change, full width at half maximum and magnetic refrigeration capacity of different kinds of alloy microwires driven by magnetic field. The basic principle and manipulation process of melt-extraction methodincluding the advantages of the small-sized microwire applying in the magnetic refrigerator are stated, with emphasis on the ability of microwire form to solve the problems of bulk alloys. Besides, the principle of magnetocaloric effect production in different microwires are described, and the influencing mechanisms of phase transition character on the full width at half maximum, magnetic entropy change and magnetocaloric effect are clarified. Finally, the research progress on the magnetic power and coefficient of performance in active magnetic regenerator equipped with parallel wires are summarized, and the feasibility of applying large volume of small-sized alloy microwires to practical refrigeration devices aiming at improving refrigeration efficiency and power is briefly discussed.
作者
张若琛
钱明芳
张学习
ZHANG Ruochen;QIAN Mingfang;ZHANG Xuexi(School of Material Science and Engineering,Shenyang Ligong University,Shenyang 110159,China;School of Material Science and Engineering,Harbin Institute of Technology,Harbin 150001,China)
出处
《材料导报》
EI
CAS
CSCD
北大核心
2024年第11期260-269,共10页
Materials Reports
基金
沈阳理工大学高层次人才引进启动项目(1010147001106)
辽宁省教育厅高等学校基本科研项目(LJKQZ20222278)
辽宁省科技厅博士启动项目(2023-BS-129)。
关键词
熔体纺丝法
纤维
磁熵变
磁热效应
磁制冷
melt-extraction method
microwires
magnetic entropy change
magnetocaloric effect
magnetic refrigeration
