节点文献

固相反应制备网状Fe(CO_0.5Ni_0.5)O₅复合氧化物及其电磁学性质研究

Study on Preparation of Nanometer Reticulation Fe(Co_0.5Ni_0.5)O₅ by Solid-state Reaction and Electromagnetic Characteristics

推荐 CAJ下载
PDF下载
不支持迅雷等下载工具，请取消加速工具后下载。

【Author】 ZHUANG Jia YANG Dingming Institute of Science and Engineering of Materials,Sichuan University,Chengdu 610054; Institute of Science and Engineering of Materials,Southwest University of Science and Technology,Mianyang 621002 CHI Yanhua Institute of Science and Engineering of Materials,Southwest University of Science and Technology,Mianyang 621002 ZHU Dachuan TU Mingjing Institute of Science and Engineering of Materials,Sichuan University,Chengdu 610054;

【机构】四川大学材料科学与工程学院；西南科技大学材料科学与工程学院；四川大学材料科学与工程学院成都 610054 西南科技大学材料科学与工程学院；绵阳 621002；成都 610054 西南科技大学材料科学与工程学院；成都 610054；

【摘要】在低热固相条件下,采用 FeCl₂·4H₂O,CoCl₂·6H₂O,NiCl₂·6H₂O 与 NH₄HCO₃进行反应,制备出铁钴镍的混合前驱物,在580℃下分解该前驱物。分解产物经 XRD、SEM、TEM、粒度仪表征和化学分析后,获得了具有特殊网状结构,网骨直径约为25nm,网骨长度和直径比例为5的 Fe(Co_0.5Ni_0.5)O₅复合氧化物粉体。时该粉体进行电磁学性质（介电常数ε、磁导率μ和吸波特性γ）测试后发现,其电磁学性质和吸波特性较其它铁氧体粉末改善明显。更多还原

【Abstract】 Precursors Fe₂（OH）_CO₃,Co₂（OH）₂CO₃ and Ni₂（OH）₂CO₃ were prepared by solid state reaction of FeCl₂·4H₂O,CoCl₂·6H₂O,NiCl₂·6H₂O with NH₄HCO₃ at low heating temperature（ambient temperature）.A compound oxide was obtained by decomposing the precursor for about 2 hour at 580℃.The compound was character- ized by XRD,SEM,TEM,Size instrument and chemical analysis.We have got a Fe(Co_0.5Ni_0.5)O₅ nanometer powder of reticulation,25nm in diameter and aspect ratio（average length/average diameter）up to about 5.The electromagnetic characteristics（permittivityε,permeability μ and capability of absorbing electromagnetic wave γ）of the powder were determined.Its ε and γ were better as compared with other powder of compound oxide.更多还原