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2∶17型Sm-Co高温永磁体的研究 被引量:10

Study of 2∶17-Type High Temperature Sm-Co Permanent Magnets
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摘要 用粉末冶金工艺制备了Sm(CobalFevCu0 .0 88Zr0 .0 2 5) 7.5(v =0~ 0 .3 0 )烧结磁体 ,通过系统研究Fe含量对磁体的室温及高温磁性的影响 ,制备出了具有很好的高温稳定性的永磁材料Sm(CobalFe0 .0 7Cu0 .0 88Zr0 .0 2 5) 7.5,在 5 0 0℃时其磁性能为 :Br=0 .687T ,bHC=42 9.7kA·m- 1 ,iHC=63 7 4kA·m- 1 ,(BH) max=83 .7kA·m- 1 。比较了该材料与商业用高矫顽力Nd Fe B和高矫顽力 2∶17型Sm Co磁体的高温磁性。 The effect of Fe content on room and high temperature magnetic properties of Sm(Co bal Fe v Cu 0.088 Zr 0.025 ) 7.5 ( v =0~0.30) sintered magnets, prepared by the conventional powder metallurgy method, were systematically studied. High temperature permanent magnets with high stability could be achieved in Sm(Co bal Fe 0.07 Cu 0.088 Zr 0.025 ) 7.5 sintered magnets. B r of 0 687 T, b H C of 429 7 kA·m -1 , i H C of 637 4 kA·m -1 , and ( BH ) max of 83 7 kJ·m -3 at 500 ℃ are obtained. The high temperature magnetic properties of Sm(Co bal Fe 0.07 Cu 0.088 Zr 0.025 ) 7.5 , commercial high coercivity Nd Fe B, and 2∶17 type Sm Co magnets are compared.
出处 《稀有金属》 EI CAS CSCD 北大核心 2003年第5期552-554,共3页 Chinese Journal of Rare Metals
基金 国家自然科学基金资助项目 ( 5 0 0 710 5 1:5 0 2 0 10 0 4) 国家高技术研究发展计划 ( 863 )资助项目 ( 2 0 0 1AA3 2 0 40 1)
关键词 2:17型Sm-Co合金 永磁材料 高温磁体 type Sm Co alloy permanent magnetic materials high temperature magnets
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参考文献5

  • 1周寿增.稀土永磁材料及其应用[M].北京:冶金工业出版社,1995.3.
  • 2Liu S, Hoffman E P.Application-oriented characterization of Sm2(Co,Fe,Cu,Zr)17 permanent magnets[J]. IEEE Trans Magn,1996, 32: 5091.
  • 3Hadjipanyis G C, Tang W, Zhang Y, et al. High temperature 2: 17 magnets: Relationship of magnetic properties to micorstmcture and processing[J]. IEEE Trans Magi, 2000, 36: 3382.
  • 4Liu J F,Hadjipanayis G C. Demagnetization curves and coercivity mechanism in Sm(CoFeCuZr), magnets[J]. J. Magn. Magn.Mat., 1999, 195: 620.
  • 5Wahner M H. Recent developments in sintered Sm-Co magnets[A]. Proc. 17th Int. Workshop on Rare-Earth Magnets and Their Applications[C]. Delaware, USA, 2002. 37.

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