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Preparation and performances of cobalt-nickel sphere alloy
Author(s): 
Pages: 63-66
Year: Issue:  6
Journal: Journal of Nanjing University of Technology(Natural Science Edition)

Keyword:  球状CoNiCoNi氧化物CoNi合金静磁性能;
Abstract: 采用液相法制备出一种CoNi微米/纳米复合结构前驱体,在还原和氧化2种热处理气氛下,得到CoNi微米/纳米复合结构.采用差热分析(TG DSC)、X射线衍射(XRD)、能谱(EDS)、场发射扫描电镜(FE SEM)以及振动试样磁强计(VSM)等对2种气氛下的产物进行形貌表征、物相分析以及磁性能表征.研究结果表明,CoNi微米/纳米典型的复合结构小球,直径3~5 μm,氧化产物NiCo2O4的矫顽力为51.07 Oe,饱和磁化强度2.31 emu/g.还原产物CoNi的矫顽力为190.65 Oe,饱和磁化强度107.19 emu/g.
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