MAGNETIC HARDENING OF CR-/W-ADDED NDDYFECOB SINTERED MAGNETS

被引：5

作者：

LIN, CH ^{[1
]}

CHIN, TS ^{[1
]}

HUANG, YH ^{[1
]}

YAU, JM ^{[1
]}

CHENG, KH ^{[1
]}

CHU, TY ^{[1
]}

机构：

[1] IND TECHNOL RES INST,MAT RES LABS,CHUTUNG 310,TAIWAN

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1993年 / 29卷 / 06期

关键词：

D O I：

10.1109/20.281028

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：

The addition of 2 at% Cr or W into a sintered (Nd,Dy)-(Fe,Co)-B alloy is very effective in improving room temperature coercivity and thermal stability. The W-containing alloy showed twice the coercivity value to that of W-free alloy at temperatures higher than 100-degrees-C. Both W and Cr alloying greatly improve the high temperature stability. Them exists a WFeB precipitate phase in the W-containing alloy. The WFeB phase is platelet with its long axis parallel to c-axis of the 2-14-1 phase. The domain wall pinning at the precipitate phase, as evidenced by the Lorentz microscopy, is the mason of enhanced coercivity of this alloy, particularly at high temperatures.

引用

页码：2785 / 2787

页数：3

共 14 条

[1] THE EFFECT OF V-ADDITIVES OR W-ADDITIVES TO MICROSTRUCTURE AND COERCIVITY OF ND-FE-B BASED MAGNETS [J].