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.
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收藏
页码：17 / 21
页数：5
相关论文
共 16 条
  • [1] BERNARDI J, 1992, APR INTERMAG 92 C SA
  • [2] MICROSTRUCTURE OF NDFEB BASED SINTERED MAGNETS WITH ADDITIONS OF DY, CO, AL AND V
    BRAS, J
    BIYADI, K
    FAGOT, M
    DEGAUQUE, J
    VIAL, F
    TENAUD, P
    [J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1991, 101 (1-3) : 369 - 371
  • [3] Buschow K. H. J., 1986, Material Science Reports, V1, P1, DOI 10.1016/0920-2307(86)90003-4
  • [4] TRANSMISSION ELECTRON-MICROSCOPY STUDY OF THE MU PHASE IN THE FE-ND-AL SYSTEM
    DELAMARE, J
    LEMARCHAND, D
    VIGIER, P
    [J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1992, 104 (pt 2) : 1092 - 1093
  • [5] DELAMARE J, 1992, THESIS U ROUEN
  • [6] DELAMARE J, IN PRESS
  • [7] DELAMARE J, 1994, 13 P ICEM PAR B, V2, P1181
  • [8] GRIEB B, 1991, THESIS U STUTTGART
  • [9] CORRELATION BETWEEN AL ADDITION AND MICROSTRUCTURAL CHANGES IN ND-FE-B MAGNETS
    KNOCH, KG
    HENIG, ET
    FIDLER, J
    [J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1990, 83 (1-3) : 209 - 210
  • [10] KNOCH KG, 1990, THESIS U STUTTGART
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