水热法掺杂的Yb~(3+)对NiYb_xFe_(2-x)O_4铁氧体磁性和形貌的影响
EFFECT OF Yb~(3+) DOPED BY HYDRO THERMAYL SYNTHESIS METHOD ON FERRITE MAGNETIC AND MORPHOSIS OF NiYb_xFe_(2-x)O_4 马尔甫哈·阿扎提;Saltanat Nyssanbayeva;拜山·沙德克; 1:新疆大学物理科学与技术学院 2:Kazakh National Technical University named after K.I.Satpayev 摘要(Abstract)：

本文以研究稀土元素镱掺杂对镍铁氧体磁性能的影响用为目的,采用水热法,去离子水作为溶剂,用硝酸镍(Ni(NO3)2·6H2O),硝酸铁(Fe(NO)3·9H2O),硝酸镱Yb(NO3)3·5H2O,氢氧化钠(NaOH)为原料,制备出镍铁氧体NiYbxFe2-xO4纳米粉体.利用X射线衍射(XRD),X射线能谱仪(EDS),扫描电镜(SEM),透射电子显微镜(TEM),振动样品磁强计(VSM)在成分,定性定量和形貌等方面进行了表征.结果表明,稀土元素镱掺杂将会降低镍铁氧体纳米粉体的晶粒尺寸.稀土离子磁矩的磁稀释作用导致镍铁氧体纳米磁性材料的饱和磁化强度降低,并且随着掺杂量的逐渐增加,样品的饱和磁化强度和矫顽力逐渐降低.

关键词(KeyWords)： 镍铁氧体;;稀土元素掺杂;;饱和磁化强度;;矫顽力

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基金项目(Foundation): 国家自然科学基金项目(批准号:11164027)

作者(Author): 马尔甫哈·阿扎提;Saltanat Nyssanbayeva;拜山·沙德克;

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