Production of Sm-Fe-N bulk magnets by spark plasma sintering method

被引：25
作者：
Saito, Tetsuji [1 ]
机构：
[1] Chiba Inst Technol, Dept Mech Sci & Engn, Narashino, Chiba 2750016, Japan
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2014年 / 369卷
关键词：
Rare-earth permanent magnets; Spark plasma sintering; Magnetic properties; POWDERS; COMPRESSION; COMPACTION;
D O I：
10.1016/j.jmmm.2014.06.034
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Th2Zn17-type and TbCu7-type Sm-Fe-N powder were consolidated into bulk magnets by the spark plasma sintering (SPS) method. It was found that the coarse TbCu7-type Sm-Fe-N powder possessed greater stability during sintering than the One Th2Zn17-type Sm-Fe-N powder. Although the TbCu7-type magnets produced at temperatures exceeding 773 K showed a low coercivity comparable to that of the Th2Zn17-type magnets, they exhibited a higher coercivity than the Th2Zn17-type magnets when produced at 773 K or lower. The TbCu7-type magnet produced at 773 K exhibited a high remanence of 96.4 Am-2/kg with a high coercivity of 0.72 MA/m. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：184 / 188
页数：5
相关论文
共 20 条
  • [1] Study of thermal decomposition mechanism of the Fe17Sm2N3 phase
    Cabral, FAO
    Gama, S
    deMorais, E
    Sanjurjo, NL
    Ribeiro, CA
    Colucci, CC
    [J]. IEEE TRANSACTIONS ON MAGNETICS, 1996, 32 (05) : 4365 - 4367
  • [2] IMPROVED MAGNETIC-PROPERTIES BY TREATMENT OF IRON-BASED RARE-EARTH INTERMETALLIC COMPOUNDS IN AMMONIA
    COEY, JMD
    SUN, H
    [J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1990, 87 (03) : L251 - L254
  • [3] EFFECT OF NITROGEN-CONTENT ON MAGNETIC-PROPERTIES OF SM2FE17NX (0-LESS-THAN-X-LESS-THAN-6)
    IRIYAMA, T
    KOBAYASHI, K
    IMAOKA, N
    FUKUDA, T
    KATO, H
    NAKAGAWA, Y
    [J]. IEEE TRANSACTIONS ON MAGNETICS, 1992, 28 (05) : 2326 - 2331
  • [4] STRUCTURAL AND HARD MAGNETIC-PROPERTIES OF RAPIDLY SOLIDIFIED SM-FE-N
    KATTER, M
    WECKER, J
    SCHULTZ, L
    [J]. JOURNAL OF APPLIED PHYSICS, 1991, 70 (06) : 3188 - 3196
  • [5] Application of the shock compaction technique for consolidation of hard magnetic powders
    Leonowicz, M
    Kaszuwara, W
    Jezierska, E
    Januszewski, D
    Mendoza, G
    Davies, HA
    Paszula, J
    [J]. JOURNAL OF APPLIED PHYSICS, 1998, 83 (11) : 6634 - 6636
  • [6] Magnetic properties of fully dense Sm2Fe17Nx magnets prepared by shock compression
    Mashimo, T
    Huang, X
    Hirosawa, S
    Makita, K
    Kato, Y
    Mitsudo, S
    Motokawa, M
    [J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2000, 210 (1-3) : 109 - 120
  • [7] Omatsuzawa R, 2004, T MAGN SOC JPN, V4, P113
  • [8] Enhanced coercivity of spark plasma sintered Zn-bonded Sm-Fe-N magnets
    Prabhu, D.
    Sepehri-Amin, H.
    Mendis, C. L.
    Ohkubo, T.
    Hono, K.
    Sugimoto, S.
    [J]. SCRIPTA MATERIALIA, 2012, 67 (02) : 153 - 156
  • [9] NEW MATERIAL FOR PERMANENT-MAGNETS ON A BASE OF ND AND FE
    SAGAWA, M
    FUJIMURA, S
    TOGAWA, N
    YAMAMOTO, H
    MATSUURA, Y
    [J]. JOURNAL OF APPLIED PHYSICS, 1984, 55 (06) : 2083 - 2087
  • [10] Sm-Fe-N bulk magnets produced by compression shearing method
    Saito, T
    Fukui, M
    Takeishi, H
    [J]. SCRIPTA MATERIALIA, 2005, 53 (10) : 1117 - 1121
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