Influence of particle size on the hydrogenation in La(Fe, Si)(13) compounds

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	Influence of particle size on the hydrogenation in La(Fe, Si)(13) compounds
	Zhang, H ; Long, Y ; Niu, E ; Shao, XP ; Shen, J ; Hu, FX ; Sun, JR ; Shen, BG
刊名	JOURNAL OF APPLIED PHYSICS
	2013
卷号	113 期号:17
ISSN号	0021-8979
通讯作者	Zhang, H (reprint author), Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China.
中文摘要	The influence of particle size on the hydrogenation of La(Fe, Si)(13) compounds is studied in detail. The average T-C increases largely from 240K to 308.5K due to the enhancement of surface area by reducing the particle size. Besides, it is found that small particle size and narrow size range would improve the homogeneity of hydrogen distribution. The magnetic entropy change (Delta S-M) decreases slightly after hydrogenation, but the maximum value of -Delta S-M of small LaFe11.7Si1.3C0.2Hx still remains a relatively large value of 14.4 J/kg K for a low magnetic field change of 2 T. It is also noted that the hydrogen-saturated LaFe11.7Si1.3C0.2H1.7 exhibits a great stability under a high pressure of 1.36GPa, and this result is favorable to the further processing and applications of La(Fe, Si) 13 compounds. (C) 2013 American Institute of Physics.
语种	英语
公开日期	2014-01-16
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/57112]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Zhang, H,Long, Y,Niu, E,et al. Influence of particle size on the hydrogenation in La(Fe, Si)(13) compounds[J]. JOURNAL OF APPLIED PHYSICS,2013,113(17).
APA	Zhang, H.,Long, Y.,Niu, E.,Shao, XP.,Shen, J.,...&Shen, BG.(2013).Influence of particle size on the hydrogenation in La(Fe, Si)(13) compounds.JOURNAL OF APPLIED PHYSICS,113(17).
MLA	Zhang, H,et al."Influence of particle size on the hydrogenation in La(Fe, Si)(13) compounds".JOURNAL OF APPLIED PHYSICS 113.17(2013).