用振动样品磁强计(VSM)研究了PrxFe94.3-xB5.7Zr1(x=9.4,9.8,10.2,10.6,11,11.4)系列快淬带在淬速V=22m/s的淬态和真空退火态(670℃)样品的磁性能和磁滞回线的变化情况,发现该系列合金在淬速V=20m/s下样品S2(Pr11Fe83.3B5.7Zr1)取得了最好的磁性能为:Jr=0.76T,Hc=977.3kA/m,(BH)max=98.8kJ/m3;最佳快淬和晶化热处理都可以使软磁相与硬磁相耦合.
参考文献
[1] | Coehoorn R;de Mooij D B;Duchateau J P W B et al.Novel permanent magnetic materials made by rapid quenching[J].Journal de Physique Colloque,1988,49:669-674. |
[2] | Kneller E F;Hawing R .The exchang-spring magnet:a new materials principle permanent magnets[J].IEEE Transactions on Magnetics,1991,27(04):27-31. |
[3] | Skomski R;Coey J M D .Giant energy product in nanostructured two phase magnets[J].Physical Review B,1993,48:15812-15816. |
[4] | Chen Z M;Zhang Y;Hadjipanayis D C et al.Effect of wheel speed and subsequent annealing on the microstructure and magnetic properties of nanocomposite Pr2 Fe14B/α-Fe magnets[J].Magn Mater,1999,206:8-12. |
[5] | Withanawasam L .Nanocomposite R2Fe14B/α-Fe exchang coupled magnets[J].Journal of Applied Physics,1994,76:7065-7069. |
[6] | Goll D;Seeger M;Kronmuller H .Magnetic and microstructural properties of nanocrystalline exchang coupled PrFeB permanent magnets[J].Journal of Magnetism and Magnetic Materials,1998,18:49-60. |
[7] | 王佐诚 .纳米晶复合Pr<,2>Fe<,14>B/α-Ge永磁合金及磁体的制备、组织结构与磁性[D].北京科技大学,1999. |
[8] | 张朋越,张克勤,张湘义.Zr对PrFeB非晶合金晶化的影响[J].物理测试,2000(06):18-21. |
[9] | 张宏伟,荣传兵,张健,张绍英,沈保根.纳米晶永磁Pr8Fe87B5反磁化机理研究[J].物理学报,2003(03):722-725. |
[10] | 李智丽 .添加元素对不同厚度快淬纳米复合材料的显微组织、各向异性及磁性的影响[D].北京科技大学,1999. |
[11] | 王浩颉,孙光飞,陈菊芳,强文江,胡国辉,杨白,蔺朝晖.Nd2Fe14B/α-Fe和Pr2Fe14B/α-Fe型纳米晶永磁合金工艺与性能的对比研究[J].稀土,2003(06):52-55. |
[12] | 周寿增;董清飞.超强永磁体[M].北京:冶金工业出版社,2004:449-450. |
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