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Magnetocaloric Properties of Melt-Spun Fe-Ni-Mn-Ga Ribbons
C. W. Shih ; X. G. Zhao ; H. W. Chang ; Y. C. Tseng ; W. C. Chang
2014
Source PublicationIeee Transactions on Magnetics
ISSN0018-9464
Volume50Issue:1
AbstractThe effects of Ni substitution for Fe on phase constitutions, Curie temperature T-C, and magnetocaloric properties of melt-spun Fe50-xNixMn25Ga25 (x =0, 1, 3, 5 and 7) ribbons have been investigated. X-ray diffraction results show that the main phase in the Fe50-xNixMn25Ga25 (x = 0-7) alloy changed with the increase of Ni content from FCC structure for x = 0 into B2 structure for x = 1-7. Besides, the magnetic phase exhibits phase transition of ferromagnetic into paramagnetic state with increasing temperature for the samples with B2-type structure. The Curie temperature T-C of these ribbons varies in the temperature range of 232-257 K. The peak values of the maximal magnetic entropy change, -Delta S-M(max), are about 1.4-1.6 Jkg/K for Ni-substituted ribbons at a maximum applied field of 30 kOe. On the other hand, the relatively broader temperature range at the half maximum of Delta S-M peak (similar to 90 K), low-cost and nontoxic elements make Fe-Ni-Mn-Ga-based ribbons the promising candidates for magnetic refrigeration applications close to room temperature.
description.department[shih, c. w. ; chang, w. c.] natl chung cheng univ, dept phys, chiayi 621, taiwan. [zhao, x. g.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [chang, h. w.] tunghai univ, dept appl phys, taichung 40704, taiwan. [tseng, y. c.] natl chiao tung univ, dept mat sci & engn, hsinchu 30010, taiwan. ; chang, wc (reprint author), natl chung cheng univ, dept phys, chiayi 621, taiwan. ; phywcc@ccu.edu.tw
KeywordHeusler alloy magnetocaloric properties melt-spun ribbon amorphous-alloys
URL查看原文
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/72385
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
C. W. Shih,X. G. Zhao,H. W. Chang,et al. Magnetocaloric Properties of Melt-Spun Fe-Ni-Mn-Ga Ribbons[J]. Ieee Transactions on Magnetics,2014,50(1).
APA C. W. Shih,X. G. Zhao,H. W. Chang,Y. C. Tseng,&W. C. Chang.(2014).Magnetocaloric Properties of Melt-Spun Fe-Ni-Mn-Ga Ribbons.Ieee Transactions on Magnetics,50(1).
MLA C. W. Shih,et al."Magnetocaloric Properties of Melt-Spun Fe-Ni-Mn-Ga Ribbons".Ieee Transactions on Magnetics 50.1(2014).
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