Phases of melt-spun Sm1-xFe7+x alloys and magnetic properties of their nitrides

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	Phases of melt-spun Sm1-xFe7+x alloys and magnetic properties of their nitrides
	H. T. Kim; Q. F. Xiao; Z. D. Zhang; D. Y. Geng; Y. B. Kim; T. K. Kim; H. M. Kwon
	1997
发表期刊	Journal of Magnetism and Magnetic Materials
ISSN	0304-8853
卷号	173 期号:3 页码:295-301
摘要	Sm1-xFe7+x (0 less than or equal to x less than or equal to 0.9) alloys were induction-melted and rapidly quenched at various wheel velocities of 20-50 m/s. The results of X-ray diffraction show that for the composition of 0 less than or equal to x less than or equal to 0.1 the rhombohedral Th2Zn17-type structure is the main phase, and for the composition of 0.2 less than or equal to x less than or equal to 0.9 the hexagonal TbCu7-type structure is formed. AC initial susceptibility experiments indicate that at annealing temperatures below 580 degrees C the amorphous phase is crystallized to the TbCu7-type phase, while annealing up to 800 degrees C the TbCu7-type phase is transformed to the Th2Zn17 phase. After nitrogenation, the optimal condition for the best magnetic properties is obtained in Sm12.5Fe87.5Ny, quenched at 50 m/s and annealed at 700 degrees C for 30 min, and consequently nitrogenated at 460 degrees C for 4 h. The best result for the coercivity H-i(c) of the Sm12.5Fe87.5Ny achieved is 18.9 kA/cm (23.7 kOe).
部门归属	chungnam natl univ,dept met engn,taejon 306764,south korea. korea res inst stand & sci,taejon 305606,south korea.;kim, ht (reprint author), acad sinica,inst met res,shenyang 110015,peoples r china
关键词	Quenching sm1-xfe7+x (O<=x<=0.9) Alloys Th2zn17-type Structure Tbcu7-type Structure Nitrogenation Earth Intermetallic Compounds Sm-fe-n
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/37988
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	H. T. Kim,Q. F. Xiao,Z. D. Zhang,et al. Phases of melt-spun Sm1-xFe7+x alloys and magnetic properties of their nitrides[J]. Journal of Magnetism and Magnetic Materials,1997,173(3):295-301.
APA	H. T. Kim.,Q. F. Xiao.,Z. D. Zhang.,D. Y. Geng.,Y. B. Kim.,...&H. M. Kwon.(1997).Phases of melt-spun Sm1-xFe7+x alloys and magnetic properties of their nitrides.Journal of Magnetism and Magnetic Materials,173(3),295-301.
MLA	H. T. Kim,et al."Phases of melt-spun Sm1-xFe7+x alloys and magnetic properties of their nitrides".Journal of Magnetism and Magnetic Materials 173.3(1997):295-301.