| 自蔓延高温合成镧掺杂钡铁氧体改性研究 |
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| 引用本文： | 郭豪,刘玉存,刘登程,王建华.自蔓延高温合成镧掺杂钡铁氧体改性研究[J].山西化工,2009,29(5):1-4. |
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| 作者姓名： | 郭豪 刘玉存 刘登程 王建华 |
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| 作者单位： | 中北大学化工与环境学院,山西,太原,030051 |
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| 基金项目： | 山西省自然科学基金(20051055);;山西省工业攻关项目(20080321034) |
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| 摘 要： | 采用白蔓延高温合成法制备了La掺杂的M型钡铁氧体BaLaxFe12-xO19（x=0，0．3，0.4，0．6）。用X射线衍射仪、振动样品磁强计和扫描电镜对粉末产品的结构与磁学性能进行了观测。系统地研究了La掺杂对M型钡铁氧体结构和磁性能的影响。实验结果表明，随着掺杂量（x）的增大，矫顽力He增大，而饱和磁化强度M6和剩余磁化强度Mr均减小。当掺杂量x=0．3时，钡铁氧体具有最佳的综合磁性能。
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| 关 键 词： | La掺杂 自蔓延高温合成 钡铁氧体 磁性能 |
Ba-hexaferrites with La substitution prepared by self-propagating high-temperature synthesis |
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| GUO Hao,LIU Yu-cun,LIU Deng-cheng,WANG Jian-hua.Ba-hexaferrites with La substitution prepared by self-propagating high-temperature synthesis[J].Shanxi Chemical Industry,2009,29(5):1-4. |
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| Authors: | GUO Hao LIU Yu-cun LIU Deng-cheng WANG Jian-hua |
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| Affiliation: | College of Chemical Engineering and Environment;North University of China;Taiyuan Shanxi 030051;China |
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| Abstract: | La substituted BaLaxFe12-xO19,M-type barium ferrites were prepared by self-propagating high-temperature synthesis processing.The crystal structure and magnetic properties were studied by means of X-ray diffraction(XRD) and vibrating sample magnetometer(VSM) and SEM.The influences of La substitution on the structure and magnetic properties of BaLaxFe12-xO19 were systematically investigated.The experimental results show that intrinsic coercivity Hc increases,while saturation magnetization Ms and remainence ma... |
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| Keywords: | La substitution self-propagating high-temperature synthesis barium ferrite magnetic properties |
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