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Nd9(Fe,In)85B6納米復(fù)相永磁材料的結(jié)構(gòu)與磁性能研究
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TM273 TG113.12

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江蘇高校自然科學(xué)研究計(jì)劃項(xiàng)目(03KJB430068)


Structure and Magnetic Properties of Nanocomposite Nd9Fe85-xB6Inx Prepared by Melt-Spinning Method
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    摘要:

    用熔體快淬法制備了納米復(fù)相結(jié)構(gòu)Nd9Fe85-xB6Inx永磁體,利用XRD和VSM等方法研究了In摻雜和熱處理溫度對(duì)其磁性能的影響。結(jié)果表明,在磁體Nd9Fe85-xB6Inx中In摻雜可以提高其矯頑力和剩磁比,可改善磁體磁滯回線矩形度;有助于改善磁體Nd9Fe85-xB6Inx的熱處理性能。在Nd9Fe85-xB6Inx中,不摻雜In和摻雜In為0.5mol%時(shí),具有最佳的矯頑力和磁能積,其值分別為465kA/m和145kJ/m^3。

    Abstract:

    Nanocomposite Nd9Fe85-xB6Inx magnets were synthesized by melt-spinning method. The effect between indium-dope and treating process on their magnetic properties were investigated by using XRD and VSM. The results show that both the coercivity and remanence ratio can be enhanced by a small indium-dope in Nd9Fe85B6 nanocomposite, while squareness of its hysteresis loop is also improved greatly. The optimum energy product increases remarkably from 95 kJ/m3 to 145 kJ/m3, while coercivity rises from 405 kA/m to 465 kA/m at 0~0.5 mol% indium-dope.

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張棟杰 都有為. Nd9(Fe,In)85B6納米復(fù)相永磁材料的結(jié)構(gòu)與磁性能研究[J].稀有金屬材料與工程,2005,34(2):303~305.[Zhang Dongjie, Du Youwei. Structure and Magnetic Properties of Nanocomposite Nd9Fe85-xB6Inx Prepared by Melt-Spinning Method[J]. Rare Metal Materials and Engineering,2005,34(2):303~305.]
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  • 最后修改日期:2003-09-22
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