Effect of crystal orientation relationship on inducement of anisotropy in HDDR-treated Nd-Fe-B alloys

被引：16
作者：
Sugimoto, S [1 ]
Ohga, S
Inomata, K
Suzuki, K
Konno, T
Hiraga, K
机构：
[1] Tohoku Univ, Dept Mat Sci, Grad Sch Engn, Sendai, Miyagi 9808579, Japan
[2] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan
来源：
IEEE TRANSACTIONS ON MAGNETICS | 2002年 / 38卷 / 05期
关键词：
anisotropy; crystal orientation relationship; hydrogenation disproportionation desorption recombination (HDDR); Nd2Fe14B;
D O I：
10.1109/TMAG.2002.803079
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, using anisotropic sintered bodies, the crystal orientation relationship between the parent Nd2Fe14B phase and the disproportionated mixture during the hydrogenation disproportionation desorption recombination (HDDR) treatment was investigated by using X-ray diffraction and transmission electron microscopy. It can be concluded that retaining the crystallographic orientation relationship such as [111](alpha-Fe) and [111](NdH2)//[001](Nd2Fe14B), [110](alpha-Fe) and [110](NdH2)//[100](Nd2Fe14B) during HDDR treatment is important for the inducement of anisotropy.
引用
收藏
页码：2961 / 2963
页数：3
相关论文
共 10 条
[1]   Modified HDDR procedures applied to NdFeB alloys [J].
Gutfleisch, O ;
Gebel, B ;
Kubis, M ;
Müller, KH ;
Schultz, L .
IEEE TRANSACTIONS ON MAGNETICS, 1999, 35 (05) :3250-3252
[2]   CHARACTERIZATION OF SOLID-HDDR PROCESSED ND16FE76B8 ALLOYS BY MEANS OF ELECTRON-MICROSCOPY [J].
GUTFLEISCH, O ;
MATZINGER, M ;
FIDLER, J ;
HARRIS, IR .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1995, 147 (03) :320-330
[3]  
Harris I.R., 1992, P 12 INT WORKSH RAR, P347
[4]  
MISHIMA C, 2000, P 16 INT WORKSH RAR, V2, P873
[5]   Anisotropic Nd2Fe14B-based magnet powder with high remanence produced by modified HDDR process [J].
Morimoto, K ;
Nakayama, R ;
Mori, K ;
Igarashi, K ;
Ishii, Y ;
Itakura, M ;
Kuwano, N ;
Oki, K .
IEEE TRANSACTIONS ON MAGNETICS, 1999, 35 (05) :3253-3255
[6]   Microstructural changes in Nd2Fe14B permanent magnet alloys during HDDR phenomena [J].
Nakamura, H ;
Suefuji, R ;
Book, D ;
Kagotani, T ;
Sugimoto, S ;
Okada, M ;
Homma, M .
MATERIALS TRANSACTIONS JIM, 1996, 37 (03) :482-488
[7]   Enhancement of coercivity in high remanence NDDR Nd-Fe-B powders [J].
Nakamura, H ;
Kato, K ;
Book, D ;
Sugimoto, S ;
Okada, M ;
Homma, M .
IEEE TRANSACTIONS ON MAGNETICS, 1999, 35 (05) :3274-3276
[8]  
NAKAMURA H, 1998, P 15 INT WORKSH RE M, V1, P507
[9]   Effect of the disproportionation and recombination stages of the HDDR process on the inducement of anisotropy in Nd-Fe-B magnets [J].
Sugimoto, S ;
Nakamura, H ;
Kato, K ;
Book, D ;
Kagotani, T ;
Okada, M ;
Homma, M .
JOURNAL OF ALLOYS AND COMPOUNDS, 1999, 293 :862-867
[10]  
TAKESHITA T, 1990, 11TH P INT WORKSH RA, V1, P49
1