CHARACTERIZATION OF THE ND-FE-AL MU-PHASE IN THE MICROSTRUCTURE OF AN ALUMINUM-SUBSTITUTED AND VANADIUM-SUBSTITUTED ND-FE-B MAGNET

被引：4

作者：

LEGRAS, L

DELAMARE, J

LEMARCHAND, D

DINH, JV

VIGIER, P

机构：

[1] Laboratoire de Microscopie Electronique et Matériaux Magnétiques, Groupe de Métallurgie Physique URA CNRS 808, Université de Rouen

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 1995年 / 218卷 / 01期

关键词：

ELECTRON MICROSCOPY; MICROSTRUCTURE; MAGNETS; POLYTYPES;

D O I：

10.1016/0925-8388(94)01369-1

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 microstructure of a commercial Nd-Fe-B-based magnet containing aluminium and vanadium is investigated by transmission electron microscopy. Two kinds of mu (Nd-Fe-Al) precipitates are identified: thin platelets along Phi-phase grain boundaries, and thicker lamellae inside the triple junction Nd-rich phase. The morphology of the mu phase and its solidification mechanism are shown to be similar in the magnet and in ternary Nd-Fe-Al alloys. However, a structural modification of the mu phase takes place in the magnet in comparison with the ternary alloys.

引用

页码：17 / 21

页数：5

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