The influence of Si addition on the glass forming ability, magnetic and magnetocaloric properties of the Gd-Fe-Al glassy ribbons

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	The influence of Si addition on the glass forming ability, magnetic and magnetocaloric properties of the Gd-Fe-Al glassy ribbons
	X. G. Zhao; J. H. Lai; C. C. Hsieh; Y. K. Fang; W. C. Chang; Z. D. Zhang
	2011
发表期刊	Journal of Applied Physics
ISSN	0021-8979
卷号	109 期号:7
摘要	The effects of Si substitution for Al on the glass forming ability, Curie temperature T(C), magnetocaloric effect, and refrigeration capacity (RC) of melt-spun Gd-based Gd(65)Fe(20)Al(15-x)Si(x) (x = 0-7) glassy ribbons have been investigated. The small amounts of Si substitution for Al in the Gd(65)Fe(20)Al(15-x)Si(x) glassy ribbons with high T(x)/T(m) (>0.70) and small Delta T(m) (Delta T(m) = T(m)-T(x)) promote the formation of high thermal stability of these alloys. The Si addition leads to an increase of Curie temperature T(C) of glassy ribbons from 181 K for x = 0 to 227 K for x = 7. The maximal magnetic entropy changes -Delta S(M) and RC values for magnetic field change of 50 kOe are about 4.70-5.20 J/kg K and 710-760 J/kg, respectively. The large RC values are due to the broad temperature range of the half maximum of Delta S(M) peak (similar to 200 K), which is caused by the change of the amorphous disorder structure. The moderate Delta S(M) and large RC values jointly make the Gd(65)Fe(20)Al(15-x)Si(x) glassy ribbons promising candidates for magnetic refrigeration materials working at temperature range of 100-300 K. (C) 2011 American Institute of Physics. [doi:10.1063/1.3540666]
部门归属	[zhao, x. g.; lai, j. h.; hsieh, c. c.; chang, w. c.] natl chung cheng univ, dept phys, chiayi 62102, taiwan. [zhao, x. g.; zhang, z. d.] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. [zhao, x. g.; zhang, z. d.] chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china. [fang, y. k.] cent iron & steel res inst, div funct mat res, beijing 100081, peoples r china.;chang, wc (reprint author), natl chung cheng univ, dept phys, chiayi 62102, taiwan;pyhwcc@ccu.edu.tw
关键词	Entropy Change Refrigeration Co
URL	查看原文
WOS记录号	WOS:000289949000295
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/30955
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. G. Zhao,J. H. Lai,C. C. Hsieh,et al. The influence of Si addition on the glass forming ability, magnetic and magnetocaloric properties of the Gd-Fe-Al glassy ribbons[J]. Journal of Applied Physics,2011,109(7).
APA	X. G. Zhao,J. H. Lai,C. C. Hsieh,Y. K. Fang,W. C. Chang,&Z. D. Zhang.(2011).The influence of Si addition on the glass forming ability, magnetic and magnetocaloric properties of the Gd-Fe-Al glassy ribbons.Journal of Applied Physics,109(7).
MLA	X. G. Zhao,et al."The influence of Si addition on the glass forming ability, magnetic and magnetocaloric properties of the Gd-Fe-Al glassy ribbons".Journal of Applied Physics 109.7(2011).