Formation of 1:13 Phase in La(Fe,Si)(13)-Based Compounds by Diffusion of LaFe,Si/alpha-Fe(Si) Couple

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	Formation of 1:13 Phase in La(Fe,Si)(13)-Based Compounds by Diffusion of LaFe,Si/alpha-Fe(Si) Couple
	Fu, S ; Long, Y ; Wang, CL ; Zhang, M ; Soumei, O ; Hu, FX
刊名	IEEE TRANSACTIONS ON MAGNETICS
	2012
卷号	48 期号:11 页码:3757
ISSN号	0018-9464
通讯作者	Long, Y: Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China.
中文摘要	Formation mechanism of the 1:13 phase in La(Fe,Si)(13) compounds has been investigated by the diffusion of LaFeSi/alpha - Fe(Si) couple at 1353 K and 1443 K. After annealing at 1353 K for 12 days, 0.8 mm thick 1:13 phase was obtained between LaFeSi and alpha - Fe(Si) sheets. A layer of La5Si3 phase determined by EDS appeared all along the interface of LaFeSi and 1:13 phase. In addition, La5Si3 phase was also found in grain boundary of 1:13 phase grains and La-rich phase was found in grain boundary of alpha - Fe(Si) sheet. It is believed that La5Si3 phase and grain boundaries working as rapid diffusion paths were important for the formation of 1:13 phase in La(Fe,Si)(13) compounds. 1:13 phase mainly formed in the alpha - Fe(Si) master alloy sheet. In addition, large grains of 1:13 phase were close to the LaFeSi sheet and small grains of 1:13 phase were close to alpha - Fe(Si) layer. It indicated that La and Si elements diffused from LaFeSi sheet to alpha - Fe(Si) sheet in the formation process of 1:13 phase. There was an endothermic peak at 207 K in the DSC curve of the 1:13 phase obtained from diffusion couple annealed at 1353K. It indicated the occurrence of magnetic phase transition.
收录类别	SCI
语种	英语
公开日期	2013-09-17
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/38378]
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	Fu, S,Long, Y,Wang, CL,et al. Formation of 1:13 Phase in La(Fe,Si)(13)-Based Compounds by Diffusion of LaFe,Si/alpha-Fe(Si) Couple[J]. IEEE TRANSACTIONS ON MAGNETICS,2012,48(11):3757.
APA	Fu, S,Long, Y,Wang, CL,Zhang, M,Soumei, O,&Hu, FX.(2012).Formation of 1:13 Phase in La(Fe,Si)(13)-Based Compounds by Diffusion of LaFe,Si/alpha-Fe(Si) Couple.IEEE TRANSACTIONS ON MAGNETICS,48(11),3757.
MLA	Fu, S,et al."Formation of 1:13 Phase in La(Fe,Si)(13)-Based Compounds by Diffusion of LaFe,Si/alpha-Fe(Si) Couple".IEEE TRANSACTIONS ON MAGNETICS 48.11(2012):3757.