COERCIVITY THROUGH CONTROLLED CRYSTALLIZATION IN MELT-SPUN ND-FE-B AMORPHOUS-ALLOYS

被引：11

作者：

CLAVAGUERAMORA, MT

DIEGO, JA

BARO, MD

SURINACH, S

CLAVAGUERA, N

GONZALEZ, JM

CEBOLLADA, F

机构：

[1] UNIV BARCELONA,FAC FIS,DEPT ESTRUCTURA & CONSTITUENTS MAT,E-08028 BARCELONA,SPAIN

[2] INST CIENCIA MAT,E-28006 MADRID,SPAIN

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 1992年 / 182卷 / 02期

关键词：

D O I：

10.1016/0925-8388(92)90595-Z

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The kinetics of crystallization of amorphous melt-spun Nd13Fe79B8 alloy induced by thermal treatment was studied by differential scanning calorimetry, scanning and transmission electron microscopy and magnetic measurements. The optimization of coercivity through controlled crystallization is explained as a consequence of the crystallization kinetic behaviour. Optimal materials are obtained by annealing the amorphous alloys at temperatures in the range 950-1000 K for times of the order of 15 min. After that heat treatment a fully crystallized material is obtained with a mean grain size of about 60 nm and a coercivity of 1.4 T.

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收藏

页码：211 / 221

页数：11

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