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Microstructure and magnetocaloric properties in melt-spun and high-pressure hydrogenated La0.5Pr0.5Fe11.4Si1.6 ribbons*

文献类型：期刊论文

作者Liu, Qian2,3; Tong, Min2; Zhao, Xin-Guo2,3; Sun, Nai-Kun1; Xiao, Xiao-Fei2,3; Guo, Jie2,3; Liu, Wei2,3; Zhang, Zhi-Dong2,3
刊名CHINESE PHYSICS B
出版日期2021-07-01
卷号30期号:8页码:7
关键词La-Pr-Fe-Si melt-spun ribbon hydrides magnetic properties microstructure
ISSN号1674-1056
DOI10.1088/1674-1056/abea91
通讯作者Zhao, Xin-Guo(xgzhao@imr.ac.cn) ; Sun, Nai-Kun(naikunsun@163.com)
英文摘要The effects of wheel speeds and high-pressure hydrogen treatment on phase evolution, microstructure, and magnetocaloric properties in La0.5Pr0.5Fe11.4Si1.6 melt-spun ribbons are studied in this work. The results reveal that the increase of wheel speed is beneficial to the formation of cubic NaZn13-type phase and the grain refinement. The optimized wheel speed for microstructural and magnetocaloric properties is 30 m/s. The largest entropy change of 18.1 J/kg.K at 190 K under a magnetic field change of 0 T-5 T is obtained in La0.5Pr0.5Fe11.4Si1.6 ribbons melt-spun at 30 m/s. After a high-pressure hydrogen treatment of 50 MPa, the Curie temperature of the ribbons prepared at 30 m/s is adjusted to about 314 K and the large -Delta S (M) of 17.9 J/kg.K under a magnetic field change of 0 T-5 T is achieved at room temperature with almost none hysteresis loss. The small thermal and magnetic hysteresis and the large -Delta S (M) make the La0.5Pr0.5Fe11.4Si1.6 hydride ribbons appropriate for magnetic refrigerant applications around room temperature.
资助项目National Natural Science Foundation of China[51771197] ; Chinese Academy of Sciences[KJZD-EW-M05] ; Liaoning Revitalization Talents Program, China[XLYC1807122]
WOS研究方向Physics
语种英语
WOS记录号WOS:000679083500001
出版者IOP PUBLISHING LTD
资助机构National Natural Science Foundation of China ; Chinese Academy of Sciences ; Liaoning Revitalization Talents Program, China
源URL[http://ir.imr.ac.cn/handle/321006/159720]  
专题金属研究所_中国科学院金属研究所
通讯作者Zhao, Xin-Guo; Sun, Nai-Kun
作者单位1.Shenyang Ligong Univ, Sch Sci, Shenyang 110159, Peoples R China
2.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China
3.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Qian,Tong, Min,Zhao, Xin-Guo,et al. Microstructure and magnetocaloric properties in melt-spun and high-pressure hydrogenated La0.5Pr0.5Fe11.4Si1.6 ribbons*[J]. CHINESE PHYSICS B,2021,30(8):7.
APA Liu, Qian.,Tong, Min.,Zhao, Xin-Guo.,Sun, Nai-Kun.,Xiao, Xiao-Fei.,...&Zhang, Zhi-Dong.(2021).Microstructure and magnetocaloric properties in melt-spun and high-pressure hydrogenated La0.5Pr0.5Fe11.4Si1.6 ribbons*.CHINESE PHYSICS B,30(8),7.
MLA Liu, Qian,et al."Microstructure and magnetocaloric properties in melt-spun and high-pressure hydrogenated La0.5Pr0.5Fe11.4Si1.6 ribbons*".CHINESE PHYSICS B 30.8(2021):7.

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来源：金属研究所

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