Phase evolution and magnetocaloric effect of melt-spun Mn3Sn2-xMx (M = B, C; x=0-0.5) ribbons

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	Phase evolution and magnetocaloric effect of melt-spun Mn3Sn2-xMx (M = B, C; x=0-0.5) ribbons
	X. G. Zhao; E. H. Lee; C. C. Hsieh; C. W. Shih; W. C. Chang; Z. D. Zhang
	2012
发表期刊	Journal of Applied Physics
ISSN	0021-8979
卷号	111 期号:7
摘要	The effects of B and C substitution for Sn on phase components, Curie temperature T-C, and magnetocaloric effect of melt-spun Mn3Sn2-xMx (M = B, C; x = 0-0.5) ribbons have been investigated. X-ray diffraction (XRD) results show that the main phase in the as-spun Mn3Sn2-xMx (M = B, C; x = 0-0.5) ribbons is Mn3Sn2 of Ni3Sn2-type (Pnma). Minor Mn2B (when x >= 0.1) or Mn5C2 (when x > 0.1) secondary phase is formed, and their amounts increase with increasing B and C concentration, respectively. The Curie temperature T-C of these ribbons varies in the temperature range of 240-250K. The peak values of the maximal magnetic entropy change, -Delta S-M(max), are about 13.6-18.3 mJ/cm(3) K for B-substituted ribbons and 13.6-17.5 mJ/cm(3) K for C-substituted ribbons, respectively, at a maximum applied field of 50 kOe. These values are about one fifth that of Gd (81.4 mJ/cm(3) K). However, the relatively broader temperature range of the half maximum of Delta S-M peak (similar to 100K), low-cost and nontoxic elements still make Mn3Sn2-based ribbons the promising candidates for magnetic refrigeration applications close to room temperature. (C) 2012 American Institute of Physics. [doi:10.1063/1.3671789]
部门归属	[zhao, x. g.; lee, e. h.; hsieh, c. c.; shih, c. w.; chang, w. c.] natl chung cheng univ, dept phys, ming hsiung 62102, chia yi, taiwan. [zhao, x. g.; zhang, z. d.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [zhao, x. g.; zhang, z. d.] chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china.;chang, wc (reprint author), natl chung cheng univ, dept phys, ming hsiung 62102, chia yi, taiwan.;phywcc@ccu.edu.tw
关键词	Room-temperature
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/60487
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. G. Zhao,E. H. Lee,C. C. Hsieh,et al. Phase evolution and magnetocaloric effect of melt-spun Mn3Sn2-xMx (M = B, C; x=0-0.5) ribbons[J]. Journal of Applied Physics,2012,111(7).
APA	X. G. Zhao,E. H. Lee,C. C. Hsieh,C. W. Shih,W. C. Chang,&Z. D. Zhang.(2012).Phase evolution and magnetocaloric effect of melt-spun Mn3Sn2-xMx (M = B, C; x=0-0.5) ribbons.Journal of Applied Physics,111(7).
MLA	X. G. Zhao,et al."Phase evolution and magnetocaloric effect of melt-spun Mn3Sn2-xMx (M = B, C; x=0-0.5) ribbons".Journal of Applied Physics 111.7(2012).