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RE2Fe14B/α-Fe(RE=Nd,Dy,Pr)納米復(fù)合永磁材料的研究
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TM273

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國(guó)家高技術(shù)研究發(fā)展計(jì)劃(863計(jì)劃) , 上海市重點(diǎn)學(xué)科建設(shè)項(xiàng)目 , 上海應(yīng)用技術(shù)學(xué)院引進(jìn)人才啟動(dòng)基金


Research on RE2Fe14B/α-Fe(RE=Nd, Dy, Pr)Nanocomposite Magnets
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    摘要:

    隨著稀土含量的增加,快淬薄帶矯頑力提高,剩磁降低,當(dāng)稀土總量為10at%和快淬速度為12 m/s時(shí),快淬薄帶的矯頑力可達(dá)955 kA/m.當(dāng)稀土總量為9.5at%時(shí),快淬薄帶晶化后的磁性能幾乎不受快淬速度的影響.Dy替代部分Nd,提高了快淬薄帶的非晶形成能力和熱穩(wěn)定性;經(jīng)過晶化處理后,快淬薄帶的矯頑力明顯提高,剩磁略有下降,居里溫度提高.Pr替代部分Nd,也提高了快淬薄帶的非晶形成能力和熱穩(wěn)定性:經(jīng)過晶化處理后,快淬薄帶的剩磁和矯頑力都有所增加.

    Abstract:

    Coercivity is improved, while remanence is decreased for the annealed ribbons with the increase of rare earth content, the coercivity for ribbons reaches 955 kA/m upon 10at% in rare earth content and 12 m/s in wheel speed. Wheel speed almost has no effect on magnetic properties of ribbons with 9,5at% in rare earth. The amorphous formation ability and thermal stability are improved for as-spun ribbons upon Dy or Pr substitution for Nd element. Coercivity and Curie temperature are improved and remanence is decreased slightly for ribbons upon Dy substitution for Nd element. But for ribbons with Pr substitution for Nd element, both of coercivity and remanence are increased slightly .

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王占勇,周邦新,倪建森,徐暉,王現(xiàn)英,房永征,金鳴林. RE2Fe14B/α-Fe(RE=Nd, Dy, Pr)納米復(fù)合永磁材料的研究[J].稀有金屬材料與工程,2008,37(2):240~244.[Wang Zhanyong, Zhou Bangxin, Ni Jiansen, Xu Hui, Wang Xianying, Fang Yongzheng, Jin Minglin. Research on RE2Fe14B/α-Fe(RE=Nd, Dy, Pr)Nanocomposite Magnets[J]. Rare Metal Materials and Engineering,2008,37(2):240~244.]
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  • 收稿日期:2007-01-27
  • 最后修改日期:2007-04-29
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