高压对大块(PrNd)xAl0.6Nb0.5Cu0.15B1.05Fe97.7-x合金微观结构和性能的影响

唐杰; 杨梨容; 王晓军; 张林; 魏成富; 陈擘威; 梅杨

doi:10.7498/aps.61.240701

摘要

经配料、熔炼、制粉、成型和烧结后制备了 (PrNd)xAl0.6Nb0.5Cu0.15B1.05Fe97.7-x (质量百分比)合金, 将该合金分别采用1.5 GPa和3.0 GPa的压强进行压制, 研究了此高压对其显微结构和磁性能的影响. 分析发现, 该块状合金承受的压强越高, 其外观和微观结构破坏越严重, 抗弯强度也会降低, 但高温抗氧化性能却有一定程度的提高. 与没有经过高压处理的磁体相比, 经过1.5 GPa和3.0 GPa高压的样品最大磁能积分别提高了7.69 kJ·m-3和0.94 kJ·m-3, 剩余磁通密度分别提高了0.02 T和0.01 T, 内禀矫顽力分别提高了20.06 kA·m-1和30.33 kA·m-1. 结果表明, 高压对块状NdFeB烧结磁体的显微结构和力学性能及磁性能均有一定的影响.

关键词:

NdFeB 合金 /
高压 /
微观结构 /
性能

Abstract

According to nominal composition (PrNd)xAl0.6Nb0.5Cu0.15B1.05Fe97.7-x(weight percentage), the sintered NdFeB magnets are prepared by melting processing, milling processing, moulding processing and sintering processing. Microstructures and properties of these bulk samples at different high pressures are tested. It is shown that with pressure increasing, appearance and microstructure of samples are destroyed, but their inoxidizability at high temperature is increased, although their flexure strength is badly reduced. On the other hand, there are more excellent magnetic properties of bulk NdFeB samples pressed at high pressures (1.5 GPa and 3.0 GPa) than those of this bulk samples without being pressed. For example, values of their maximum magnetic energy products are increased by 7.69 kJ·m-3 and 0.94 kJ·m-3 respectively, and values of their remanence are increased by 0.02 T and 0.01 T respectively, in addition, the values of their intrinsic coercive force are increased by 20.06 kA·m-1 and 30.33 kA·m-1 respectively. It is ind that high pressure has some effects on microstructure, mechanical and magnetic property of the bulk NdFeB alloy.

Keywords:

作者及机构信息

1.
绵阳师范学院化学与化学工程学院, 绵阳 621000;

2.
中国工程物理研究院激光聚变研究中心, 绵阳 621900

基金项目: 四川省科技厅科技支撑计划(批准号: 2012JY0045, 2011SZZ029、四川省教育厅科研基金(批准号: 10ZA060, 11ZA161)、绵阳市科技局科研基金(批准号: 10Y002-4)和绵阳师范学院学科专项基金(批准号: 2011C02)资助的课题.

Authors and contacts

1.
School of Chemistry and Chemical Engineering, Mianyang normal university, Mianyang 621000, China;

2.
Research Center of Laser Fusion; CAEP, Mianyang 621900, China

Funds: Project supported by the Key Technology Research and Development Program of the Department of Science and Technology of Sichuan Province, China (Grant Nos. 2012JY0045, 2011SZZ029), the Scientific Research Fundation of the Education Department of Sichuan Province, China (Grant Nos. 10ZA060, 11ZA161), the Key Project of Science and Technology Bureau of Mianyang Municipal, Sichuan Province, China (Grant No. 10Y002-4), and the Special Project of MianYang Normal Universty (Grant No. 2011C02).

参考文献

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施引文献

[1]	Meng Z H, Li J B, Guo Y Q, Wang Y 2012 Acta Phys. Sin. 61 107101 (in Chinese) [孟振华, 李俊斌, 郭永权, 王义 2012 物理学报 61 107101]
[2]	Hyo Jun Kim, Dong Hwan Kim, Andrew S Kim, Sang Myun Kim, Chang Seop Koh, Gyu-Hong Kang 2006 J. Iron Steel Research, International 13 411
[3]	Basak A, Anayi F J 1992 J. Magn. Magn. Mate. 112 426
[4]	Slusarek B, Dudzikowski I 2002 J. Magn. Magn. 239 597
[5]	Li H, Chen Z 2009 Renew Energ 34 1175
[6]	Guo F, Tang Y, Ren L, Li J 2010 Physica C: Superconductivity 470 1787
[7]	Zhang L C, Wang J S, He Q Y, Zhang J H, Wang S Y 2007 Physica C: Superconductivity 459 33
[8]	Singh A K, Liermann H P, Akahama Y, Saxena S K, Menendez-Proupin E 2007 J. Appl. Phys. 101 123526
[9]	Klotz S, Besson J M, Hamel G, Nelmes R J, Loveday J S, MarshallW G, Wilson R M 1995 Appl. Phys. Lett. 66 1735
[10]	Guan J W, He D W, Wang W D, Wang H K, Peng F, Xu C, Wang K X, He K 2012 Acta Phys. Sin. 61 100701 (in Chinese) [管俊伟, 贺端威, 王海阔, 彭放, 许超, 王文丹, 王凯雪, 贺凯 2012 物理学报 61 100701]
[11]	Dunstan D J 1989 Rev. Sci. Instrum. 60 3789
[12]	Grnberger W, Hinz D, Schläfer D, Schultz L 1996 J. Magn. Magn. Mater. 157-158 41
[13]	Wei C F, Tang J, Yang L R, Zhao D W 2011 J. Magn. Mater. Device 42 22 (in Chinese) [魏成富, 唐杰, 张林, 杨梨容, 赵导文 2011 磁性材料及器件 42 20]
[14]	Buschow K H J 1986 Materials Science Reports 1 1
[15]	Gao R W, Zhang D H, Li W, Zhang J C 2000 J. Magn. Magn. Mater. 208 239
[16]	Mendoza-Suárez G, Davies H A, Escalante-Garcíi J I 2000 J. Magn. Magn. Mater. 218 97
[17]	Kronmller H, Durst K D, Sagawa M 1998 J. Magn. Magn. Mater. 74 291
[18]	Kronmller H 2001 Encyclopedia of Materials: Science and Technology 2 1295
[19]	Forkl A, Pastushenkov J, Maki K, Kronmller H 1991 J. Magn. Magn. Mater. 101 367
[20]	Martinek G, Kronmller H 1990 J. Magn. Magn. Mater. 86 177
[21]	Blank R 1991 J. Magn. Magn. Mater. 101 317
[22]	Pan M X, Zhang P Y, Li X J, Ge H L, Wu Q Jiao Z W, Liu T T 2010 J. Rare Earth 28 399
[23]	Mo W J, Zhang L T, Liu Q Z, Shan A D, Wu J S, Matahiro Komuro, Shen L P 2008 J. Rare Earth 26 268
[24]	Minowa T, Shimao M, Honshima M 1991 J. Magn. Magn. Mater. 97 107
[25]	Yang J P, Pi S H, Kim Y P 1992 J. Magn. Magn. Mater. 110 L261
[26]	Jin Z Z, Bao Y W 1996 Designing and Evaluating on Mechanical Property of Fragile Material (Beijing: China Railway Press) p143 (in Chinese) [金宗哲, 包亦望 1996 脆性材料力学性能设计与评价 (北京: 中国铁路出版社)第143页]

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