| La-Zn取代对六角型锶铁氧体的显微结构及磁性能的影响 |
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| 引用本文： | 杨玉杰,邵菊香,王藩侯,刘先松,冯双久,黄多辉,曹启龙,万明杰,金成国,杨俊升.La-Zn取代对六角型锶铁氧体的显微结构及磁性能的影响[J].磁性材料及器件,2016(1):14-17. |
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| 作者姓名： | 杨玉杰 邵菊香 王藩侯 刘先松 冯双久 黄多辉 曹启龙 万明杰 金成国 杨俊升 |
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| 作者单位： | 1. 宜宾学院计算物理四川省高校重点实验室,四川宜宾,644007;2. 安徽大学磁学材料安徽省工程技术研究中心,安徽合肥,230039 |
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| 摘 要： | 采用固相反应法制备Sr_(1-x)La_x Fe_(11.8-x) Zn_x O_(19)(0≤x≤0.42)M型六角铁氧体磁粉和磁体。X射线衍射(XRD)分析表明,La-Zn取代量x在0~0.42范围内磁粉是单一的磁铅石型相。磁体的FESEM观察表明,不同La-Zn取代量的磁体形成了均匀的六角片状结构。随La-Zn取代量的增大,磁体的剩磁B_r和最大磁能积(BH)_(max)先增后降,最大值对应的取代量为0.3,而其内禀矫顽力H_(cj)和磁感应矫顽力H_(cb)则单调下降。
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| 关 键 词： | M型六角Sr铁氧体 La-Zn取代 显微结构 磁性能 |
Influence of La-Zn substitution on the microstructural and magnetic properties of hexagonal strontium ferrites |
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| YANG Yu-jie,SHAO Ju-xiang,WANG Fan-hou,LIU Xian-song,FENG Shuang-jiu,HUANG Duo-hui,CAO Qi-long,WAN Ming-jie,JIN Cheng-guo,YANG Jun-sheng.Influence of La-Zn substitution on the microstructural and magnetic properties of hexagonal strontium ferrites[J].Journal of Magnetic Materials and Devices,2016(1):14-17. |
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| Authors: | YANG Yu-jie SHAO Ju-xiang WANG Fan-hou LIU Xian-song FENG Shuang-jiu HUANG Duo-hui CAO Qi-long WAN Ming-jie JIN Cheng-guo YANG Jun-sheng |
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| Abstract: | The M-type hexaferrite Sr1-xLaxFe11.8-xZnxO19(0≤x≤0.42) powder and magnets were prepared by solid state reaction method. X-ray diffraction analysis shows that the single magnetoplumbite phase was obtained in the magnetic powder withx ranging from 0 to 0.42. The FESEM image showed that the perfect hexagonal flakre structure was formed in the sintered magnets and the grains were distributed homogenously. With increasingx, the remanenceBr and maximum energy product (BH)max of the magnets first increases and then decreases with maximum values of 421.8 mT and 33.43 kJ/m3 atx=0.30, respectively. Both the intrinsic coercivityHcj and magnetic induction coercivityHcb decreases montonously withx increasingfrom 0 to 0.42. |
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| Keywords: | M-type hexagonal strontium ferrites La-Zn substitution microstructure magnetic properties |
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