Phase transformation and magnetic properties of mechanically alloyed NdFe12-xMoxNy

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	Phase transformation and magnetic properties of mechanically alloyed NdFe12-xMoxNy; Phase transformation and magnetic properties of mechanically alloyed NdFe12-xMoxNy
	S. L. Tang; X. M. Jin; B. W. Wang; Z. Q. Jin; S. Y. Zhang; Y. W. Du
	1998 ; 1998
发表期刊	Journal of Alloys and Compounds ; Journal of Alloys and Compounds
ISSN	0925-8388 ; 0925-8388
卷号	279 期号:2 页码:229-232
摘要	The structure and permanent magnetic properties of isotropic powders of NdFe12-xMox (1 less than or equal to x less than or equal to 2) and their nitrides were investigated by using mechanical alloying. It was found that heat treatment of as-milled powders at 850 similar to 900 degrees C resulted in the formation of the Nd(Fe,Mo)(12) phase. The metastable Nd(Fe,Mo)(7) phase and a large amount of alpha-Fe were present at 800 degrees C. After nitrogenation, the volume expansion of NdFe12-xMox phases was about 3.5% and the Curie temperature of the samples was enhanced by 157 similar to 207 degrees C. In NdFe12-xMoxNy compounds the values of T-c fall in the range of 272 similar to 75 degrees C. It has been found that the intrinsic coercivities strongly increased with increasing Mo content. The maximum coercivity, H-i(c)=7.8 kOe, was achieved at 850 degrees C for the sample with x=2. The difference between the coercivities of the mechanically alloyed Nd(Fe,Mo)(12)N-y powders with different Mo content was attributed to their different crystallization behavior. (C) 1998 Elsevier Science S.A. All rights reserved.; The structure and permanent magnetic properties of isotropic powders of NdFe12-xMox (1 less than or equal to x less than or equal to 2) and their nitrides were investigated by using mechanical alloying. It was found that heat treatment of as-milled powders at 850 similar to 900 degrees C resulted in the formation of the Nd(Fe,Mo)(12) phase. The metastable Nd(Fe,Mo)(7) phase and a large amount of alpha-Fe were present at 800 degrees C. After nitrogenation, the volume expansion of NdFe12-xMox phases was about 3.5% and the Curie temperature of the samples was enhanced by 157 similar to 207 degrees C. In NdFe12-xMoxNy compounds the values of T-c fall in the range of 272 similar to 75 degrees C. It has been found that the intrinsic coercivities strongly increased with increasing Mo content. The maximum coercivity, H-i(c)=7.8 kOe, was achieved at 850 degrees C for the sample with x=2. The difference between the coercivities of the mechanically alloyed Nd(Fe,Mo)(12)N-y powders with different Mo content was attributed to their different crystallization behavior. (C) 1998 Elsevier Science S.A. All rights reserved.
部门归属	nanjing univ, natl lab solid state microstruct, nanjing 210093, peoples r china. nanjing univ, dept phys, nanjing 210093, peoples r china. chinese acad sci, inst met res, shenyang 110015, peoples r china. xiangtan univ, dept engn mech, hunan 411105, peoples r china.;tang, sl (reprint author), nanjing univ, natl lab solid state microstruct, nanjing 210093, peoples r china ; nanjing univ, natl lab solid state microstruct, nanjing 210093, peoples r china. nanjing univ, dept phys, nanjing 210093, peoples r china. chinese acad sci, inst met res, shenyang 110015, peoples r china. xiangtan univ, dept engn mech, hunan 411105, peoples r china.;tang, sl (reprint author), nanjing univ, natl lab solid state microstruct, nanjing 210093, peoples r china
关键词	Rare Earth Iron Compound Rare Earth Iron Compound Thmn12-type Compound Thmn12-type Compound Mechanical Alloying Mechanical Alloying Hard Magnetic Properties Hard Magnetic Properties
URL	查看原文 ; 查看原文
WOS记录号	WOS:000076579900028 ; WOS:000076579900028
引用统计	被引频次：6[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/321006/37784
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	S. L. Tang,X. M. Jin,B. W. Wang,et al. Phase transformation and magnetic properties of mechanically alloyed NdFe12-xMoxNy, Phase transformation and magnetic properties of mechanically alloyed NdFe12-xMoxNy[J]. Journal of Alloys and Compounds, Journal of Alloys and Compounds,1998, 1998,279, 279(2):229-232, 229-232.
APA	S. L. Tang,X. M. Jin,B. W. Wang,Z. Q. Jin,S. Y. Zhang,&Y. W. Du.(1998).Phase transformation and magnetic properties of mechanically alloyed NdFe12-xMoxNy.Journal of Alloys and Compounds,279(2),229-232.
MLA	S. L. Tang,et al."Phase transformation and magnetic properties of mechanically alloyed NdFe12-xMoxNy".Journal of Alloys and Compounds 279.2(1998):229-232.