Coercivity enhancement in HDDR near-stoichiometric ternary Nd–Fe–B powders
Coercivity enhancement in HDDR near-stoichiometric ternary Nd–Fe–B powders
复制标题
HDDR 近化学计量三元 Nd-Fe-B 粉末矫顽力增强
DOI:
10.1016/j.jmmm.2014.02.007
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发表时间:
2014-06
影响因子:
2.7
通讯作者:
Renbo Song
中科院分区:
文献类型:
--
作者:
Yingchang Yang;Aizhi Sun;Fuqiang Yang;Renbo Song
Anisotropic HDDR near-stoichiometric ternary Nd–Fe–B powders have been prepared. The coercivity of the powders was improved from 208.6 to 980.1 kA/m by the subsequent diffusion treatment using the Pr–Cu alloy. For comparison, Nd11.5Fe80.7B6.1Pr1.2Cu0.5alloy, in which Pr and Cu elements were directly added into the original Nd–Fe–B alloy, was also treated by the same HDDR process and the coercivity was only 557.3 kA/m. Microstructural investigations showed that a large area of (Nd, Pr)-rich phases concentrated at triangle regions in the HDDR Nd11.5Fe80.7B6.1Pr1.2Cu0.5powders, while the (Nd, Pr)-rich phases distributed uniformly in the diffusion treated powders. The uniform grain boundary layer can pin the motion of domain wall more effectively, resulting in a higher coercivity in diffusion treated HDDR Nd–Fe–B powders.
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影响因子:
2.1
作者:
Gutfleisch, O;Khlopkov, K;Honkura, Y
通讯作者:
Honkura, Y
影响因子:
6.2
作者:
S. Sugimoto;N. Koike;D. Book;T. Kagotani;M. Okada;K. Inomata;M. Homma
通讯作者:
S. Sugimoto;N. Koike;D. Book;T. Kagotani;M. Okada;K. Inomata;M. Homma
DOI:
10.1109/20.800496
发表时间:
1999-05
期刊:
IEEE International Magnetics Conference
影响因子:
--
作者:
H. Nakamura;K. Kato;D. Book;S. Sugimoto;M. Okada;M. Homma
通讯作者:
H. Nakamura;K. Kato;D. Book;S. Sugimoto;M. Okada;M. Homma
影响因子:
6
作者:
Sepehri-Amin, H.;Ohkubo, T.;Hono, K.
通讯作者:
Hono, K.
影响因子:
3.2
作者:
HIROSAWA, S;MATSUURA, Y;YAMAUCHI, H
通讯作者:
YAMAUCHI, H