How Extrinsic Is the Coercivity in NdFeB Bonded Magnets?

被引：4
|
作者：
Perigo, E. A. [1 ,2 ]
Cruz, I. A. [2 ]
Antunes, B. [2 ]
Braga, A. P. V. [2 ,3 ]
Landgraf, F. J. G. [2 ,3 ]
机构：
[1] Univ Luxembourg, Lab Phys Adv Mat, L-1511 Luxembourg, Luxembourg
[2] Inst Technol Res, BR-05508901 Sao Paulo, Brazil
[3] Univ Sao Paulo, Polytech Sch, BR-05508010 Sao Paulo, Brazil
来源：
IEEE TRANSACTIONS ON MAGNETICS | 2013年 / 49卷 / 09期
基金：
巴西圣保罗研究基金会;
关键词：
Coercivity; magnetic materials; NdFeB; pressing; FE-B MAGNETS; MECHANICAL-PROPERTIES; ND; MICROSTRUCTURE; BEHAVIOR;
D O I：
10.1109/TMAG.2013.2253788
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 influence of the densification step, performed by uniaxial pressing at room temperature, on the coercivity mu H-0(c) of NdFeB bonded magnets has been analyzed. The mass density does not play any role on mu H-0(c) of non-cured magnets prepared by the mentioned method. Due to the brittle and intergranular character of the Nd2Fe14B-based phase fracture, the nano-sized grains are not affected or the modification is negligible, which maintains mu H-0(c) unchanged. After curing, the intrinsic coercivity of the magnets is reduced as a function of the compaction pressure increase.
引用
收藏
页码：5043 / 5047
页数：5
相关论文
共 50 条
  • [31] Effects of orientation and interaction of grains on coercivity for sintered NdFeB magnets
    高汝伟
    李卫
    张建成
    吴良学
    喻晓军
    ScienceinChina,SerA., 1999, Ser.A.1999 (06) : 653 - 659
  • [32] THE INFLUENCE OF PARTICLE-SIZE ON THE COERCIVITY OF SINTERED NDFEB MAGNETS
    NOTHNAGEL, P
    MULLER, KH
    ECKERT, D
    HANDSTEIN, A
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1991, 101 (1-3) : 379 - 381
  • [33] Coercivity enhancement by Zn addition in hot deformed NdFeB magnets
    Li, Y
    Kim, YB
    Yoon, TS
    Suhr, DS
    Kim, TK
    Kim, CO
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2002, 242 : 1369 - 1371
  • [34] Effects of orientation and interaction of grains on coercivity for sintered NdFeB magnets
    Department of Physics, Shandong University, Jinan 250100, China
    不详
    Sci China Ser A, 6 (653-659):
  • [35] Effects of orientation and interaction of grains on coercivity for sintered NdFeB magnets
    Gao Ruwei
    Li Wei
    Zhang Jiancheng
    Wu Liangxue
    Yu Xiaojun
    Science in China Series A: Mathematics, 1999, 42 (6): : 653 - 659
  • [36] Improvement of coercivity of sintered NdFeB permanent magnets by heat treatment
    Vial, F
    Joly, F
    Nevalainen, E
    Sagawa, M
    Hiraga, K
    Park, KT
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2002, 242 : 1329 - 1334
  • [37] Effects of orientation and interaction of grains on coercivity for sintered NdFeB magnets
    Gao, RW
    Li, W
    Zhang, JC
    Wu, LX
    Yu, XJ
    SCIENCE IN CHINA SERIES A-MATHEMATICS PHYSICS ASTRONOMY, 1999, 42 (06): : 653 - 659
  • [38] Study on Coercivity Mechanism of the Sintered NdFeB Magnets by Zr Addition
    Zhang Pengyue
    Ge Hongliang
    Pan Minxiang
    Wu Qiong
    Yang Hangfu
    Jiao Zhiwei
    Gong Jie
    Peng Xiaoling
    MATERIALS SCIENCE AND ENGINEERING, PTS 1-2, 2011, 179-180 : 751 - 756
  • [39] Recent Advances in Corrosion Inhibition of Bonded NdFeB Magnets
    Primc, Gregor
    Mozetic, Miran
    MATERIALS, 2024, 17 (11)
  • [40] Corrosion Resistance and Coercivity of NdFeB Sintered Magnets with Different Doped Elements
    Zhang Lei
    Zhang Pengyue
    Ge Hongliang
    Pan Minxiang
    Yang Hangfu
    RARE METAL MATERIALS AND ENGINEERING, 2012, 41 : 582 - 586
12345