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Sm(Co_(0.74)Cu_(0.12)Fe_(0.1)Zr_(0.04))_(7.5)纳米晶烧结磁体的结构和磁性能

Structure and magnetic properties of Bulk nanocrystalline Sm(Co_(0.74)Cu_(0.12)Fe_(0.1)Zr_(0.04))_(7.5) sintered magnet
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摘要 采用放电等离子烧结技术制备了致密纳米晶SmCoCuFeZr烧结磁体,研究了磁体的结构和磁性能。X衍射结果表明,烧结磁体具有TbCu7结构。TEM观察显示,烧结磁体平均晶粒尺寸为35nm。室温时磁体的剩磁为0.49T,矫顽力高达1.42T,而剩磁比Mr/Ms为0.63,表明在纳米晶之间存在晶间交换耦合作用。 Bulk nanocrystalline SmCoCuFeZr sintered magnet was prepared by Spark Plasma Sintering technique （SPS） , Structure and magnetic properties of the magnet were studied. XRD patterns show that the magnet exhibits TbCu7 structure. TEM observation indicates that the average grain size of the magnet is 35nm. Magnetic measurement shows that the remanence is 0.49T and the coercivity of the magnet rea- ches as high as 1.42T at room temperature. The ratio of Mr/Ms is 0.63, which demonstrates the existence of intergrain exchange coupling among the nanograins.
作者 杨建军 许刚 张东涛 岳明 刘卫强 张久兴
机构地区 北京工业大学新型功能材料教育部重点实验室
出处 《功能材料与器件学报》 CAS CSCD 北大核心 2009年第6期595-598,共4页 Journal of Functional Materials and Devices
基金 国家863计划(2007AA03Z458) 北京市自然科学基金重点项目(No.2041001)
关键词 SMCO SPS 烧结磁体 TbCu7 SmCo SPS Sintered magnet TbCu7
分类号 TM271 [一般工业技术—材料科学与工程]
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参考文献13

  • 1Menth A. Influence of Cu - content on the hard magnetic properties of Sm ( Co, Cu) 2 : 17 compounds [J]. Journal of Applied Physics Letters, 1976, 29 (4) : 270 - 272.
  • 2S. Liu, et al. New sintered high temperature Sm- Co based permanent magnet materials [ J ]. IEEE Transactions on Magnetics, 1999, 35:3325 - 3327.
  • 3Marlin S. Wahner, H. Chen, and H. Walmer. A New Class Of Sm - TM Magnets for Operating Temperatures Up to 550℃ [ J ]. IEEE Transactions on Magnetics, 2000, 36:3376 - 3381.
  • 4A. Yan, A. Bollero, K. H. Muller, and O. Gutfleisch. Highly Coercive Melt - Spun Sm ( Co, Fe, Cu, Zr) z Magnets Prepared by Simple Processing[ J ]. IEEE Transactions on Magnetics, 2002, 38:2937 -2939.
  • 5周寿增等.稀土永磁材料及其应用[M].北京:冶金工业出版社,1995,144-156.
  • 6Jun. Yang, O. Mao, Z. Ahounian, et al. Structure and Magnetic Properties of Mechanical Mloyed SmCo7 Compound[ J ]. IEEE Transactions on Magnetics, 1996, 32: 4380 - 4383.
  • 7Ming Yue, Jiuxing Zhang, and Dongtao, Zhang, et al. Structure and magnetic properties of Sm6. 6Nd0.4 bulk nanocrystalline permanent magnet [ J ]. Journal of Applied Physics Letters, 2007, 90(24) : 242506/1 -3.
  • 8M. Hasequawa, T. Asano, K. Hashimoto, and Y. Furuya. Fabrication of muhiferroic composite actuator material by combining superelastic TiNi filler and a magnetostrictive Ni matrix[J]. Smart Materials and Structures, 2006, 15: 124 - 127.
  • 9H. Saito, M. T. Wakiyama, G. Kodoand, and H. Nakagawa. Magnetocrystalline anisotropy for Sin2 ( Co- Mn) ,7 compound with TbCu7 type disordered structure [ J ]. Journal of Magnetism and Magnetic Materials, 1989, 82: 322 - 325.
  • 10张昌文,李华,董建敏,王永娟,潘凤春,张键,郭永权,李卫.亚稳相化合物SmCo_7的磁性及电子结构[J].中国科学（G辑）,2005,35(3):260-270. 被引量：4

二级参考文献25

  • 1张昌文,李华,董建敏,王永娟,潘凤春,郭永权,李卫.化合物SmCo_5的电子结构、自旋和轨道磁矩及其交换作用分析[J].物理学报,2005,54(4):1814-1820. 被引量：11
  • 2戴道生 钱昆明.铁磁学[M].北京:科学出版社,1998..
  • 3[1]Hadjipanayis C C.J Magn Magn Mater,1999 200:373
  • 4[2]Chen Zhongmin, X Meng-Burany and Hadjipanayis C C. Appl Phys Lett, 1999,75:3165
  • 5[3]Ding J, McCormick P G and Street R.J Alloys Comp, 1993,191:197
  • 6[4]Schrefl T,Fidler J ,Kronmüller H. Phys Rev, 1994 ,B49:6100
  • 7[5]Fischer F,Schrefl T, Kronmüller H, Fidler J. J Magn Magn Mater,1996,153:35
  • 8周永洽译.现代磁性材料原理和应用[M].北京:化学工业出版社,2002.480-483.
  • 9Slater J C, Johnson K H. Self-Consistent-Field X alpha cluster method for polyatomic molecules and solids.Phys Rev B, 1972, 5:844-853.
  • 10Johnson K H. Advan Quantum Chem. New York: Academic Press, 1973. 143.

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功能材料与器件学报
2009年 第6期

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