Influence of microstructural changes on magnetic refrigeration performance for La(Fe0.94Co0.06)(11.8)Si-1.2 alloys during magnetic field cycling

IMR OpenIR

	Influence of microstructural changes on magnetic refrigeration performance for La(Fe0.94Co0.06)(11.8)Si-1.2 alloys during magnetic field cycling
	Yuan, Z. M.; He, J.; Yang, L.; Xia, Z. J.; Zhao, D. L.; You, C. Y.; Ren, W. J.; jun50543@yahoo.com
	2015
发表期刊	JOURNAL OF APPLIED PHYSICS
ISSN	0021-8979
卷号	117 期号:17 页码:-
摘要	NaZn13-type La(Fe0.94Co0.06)(11.8)Si-1.2 alloys were manufactured to investigate the influence of their microstructural change on magnetic refrigeration performance during magnetic field cycling. The magnetic refrigeration performance measurements indicate that both the large magnetic entropy change value (Delta S = 14.1 J kg(-1) K-1) and maximum adiabatic temperature change (Delta T = 2.2K) are favorable for the alloys to be superior candidate of magnetic refrigerants. However, the alloys exhibit nearly 10% decrease of Delta S and Delta T when they performed cycling ten-thousand times. More than thousand times of cycles induce local stress and grain cleavages presented by the accumulation of irreversible microstructure changes such as micro-cracks and sub-boundaries. According to the domain observation for the alloys with different field cycles, these microstructure characteristics accompany with the reconfiguration of the local magnetic domains and increase of domain wall energy, which are considered to be the reason of the decrease of Delta S. (c) 2015 AIP Publishing LLC.
部门归属	[yuan, z. m. ; he, j. ; yang, l. ; xia, z. j. ; zhao, d. l.] cent iron & steel res inst, funct mat res inst, beijing 100081, peoples r china ; [yuan, z. m. ; he, j. ; yang, l. ; xia, z. j. ; zhao, d. l.] beijing key lab precis alloys, beijing 100081, peoples r china ; [you, c. y.] xian univ technol, sch mat sci & engn, xian 710048, peoples r china ; [ren, w. j.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china
资助者	International Science and Technology Cooperation Projects of China [2012DAF51300]; National Natural Science Foundation of China [51371055, 51371140]
收录类别	sci
语种	英语
WOS记录号	WOS:000354984100327
引用统计	被引频次：5[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/321006/74917
专题	中国科学院金属研究所
通讯作者	jun50543@yahoo.com
推荐引用方式 GB/T 7714	Yuan, Z. M.,He, J.,Yang, L.,et al. Influence of microstructural changes on magnetic refrigeration performance for La(Fe0.94Co0.06)(11.8)Si-1.2 alloys during magnetic field cycling[J]. JOURNAL OF APPLIED PHYSICS,2015,117(17):-.
APA	Yuan, Z. M..,He, J..,Yang, L..,Xia, Z. J..,Zhao, D. L..,...&jun50543@yahoo.com.(2015).Influence of microstructural changes on magnetic refrigeration performance for La(Fe0.94Co0.06)(11.8)Si-1.2 alloys during magnetic field cycling.JOURNAL OF APPLIED PHYSICS,117(17),-.
MLA	Yuan, Z. M.,et al."Influence of microstructural changes on magnetic refrigeration performance for La(Fe0.94Co0.06)(11.8)Si-1.2 alloys during magnetic field cycling".JOURNAL OF APPLIED PHYSICS 117.17(2015):-.