Thermal stability and magnetocaloric effect of the Gd(65)Fe(20)Al(15-x)Bx (x=0-7) glassy ribbons

IMR OpenIR

	Thermal stability and magnetocaloric effect of the Gd(65)Fe(20)Al(15-x)Bx (x=0-7) glassy ribbons
	Y. K. Fang; C. H. Lai; C. C. Hsieh; X. G. Zhao; H. W. Chang; W. C. Chang; W. Li
	2010
发表期刊	Journal of Applied Physics
ISSN	0021-8979
卷号	107 期号:9
摘要	The thermal stability, magnetocaloric effect, and refrigeration capacity (RC) of Gd-based Gd(65)Fe(20)Al(15-x)B(x) (x=0-7) glassy ribbons have been investigated. A relatively wide supercooled liquid region Delta T(x)(Delta T(x)=T(x)-T(g)) (50-80 K) and large reduced glass transition temperature T(rg)(T(rg)=T(g)/T(m)) (>0.63) are found in Gd(65)Fe(20)Al(15-x)B(x) glassy ribbons. The distinctive glass transition and sharp crystalline events as well as large values of Delta T(x) and T(rg) confirm the excellent glass forming ability of these alloys. The maximal magnetic entropy changes, -Delta S(M)(max), and RC values of the specimens are about 4.80-5.21 J/kg K and 700-800 J/kg under 50 kOe, respectively. These -Delta S(M)(max) values are comparable to or even higher than that of some reported bulk metallic glasses. Moreover, the larger RC values are due to the broad Delta S(M) peak (similar to 200 K), which is caused by the glassy structure. The large Delta S(M) and RC values make the Gd-based Gd(65)Fe(20)Al(15-x)B(x) glassy ribbons attractive candidates for magnetic refrigeration materials. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3335498]
部门归属	[fang, y. k.; lai, c. h.; hsieh, c. c.; chang, w. c.] natl chung cheng univ, dept phys, chiayi 62102, taiwan. [fang, y. k.; li, w.] cent iron & steel res inst, div funct mat res, beijing 100081, peoples r china. [zhao, x. g.] chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china. [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 phys, taichung 40704, taiwan.;chang, wc (reprint author), natl chung cheng univ, dept phys, chiayi 62102, taiwan;ykfang@126.com phywcc@ccu.edu.tw
关键词	Magnetic Refrigeration Temperature Transition
URL	查看原文
WOS记录号	WOS:000277834300106
引用统计	被引频次：21[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/321006/31089
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. K. Fang,C. H. Lai,C. C. Hsieh,et al. Thermal stability and magnetocaloric effect of the Gd(65)Fe(20)Al(15-x)Bx (x=0-7) glassy ribbons[J]. Journal of Applied Physics,2010,107(9).
APA	Y. K. Fang.,C. H. Lai.,C. C. Hsieh.,X. G. Zhao.,H. W. Chang.,...&W. Li.(2010).Thermal stability and magnetocaloric effect of the Gd(65)Fe(20)Al(15-x)Bx (x=0-7) glassy ribbons.Journal of Applied Physics,107(9).
MLA	Y. K. Fang,et al."Thermal stability and magnetocaloric effect of the Gd(65)Fe(20)Al(15-x)Bx (x=0-7) glassy ribbons".Journal of Applied Physics 107.9(2010).