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Structural and magnetic properties of La-substituted strontium W-type hexagonal hexaferrites

机译:La-取代锶W型六方六方六边形六边形六边形六边形六边形六边形的结构和磁性

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摘要

W-type strontium hexaferrites with chemical composition of Sr1-xLaxZn2Fe16O27 (x=0-0.25) were synthesized by traditional ceramics process. Effects of the substituted amount x of La3+ on the ferrites microstructure and magnetic properties have been investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM) and a magnetic properties test instrument. As a result, at x0.20, all samples are single phase after the La substitution. At x=0.25, another phase of La2O3 is present. In addition, the maximum values of the remanence (B-r) and maximum energy product ((BH)(max)) for the magnets have been obtained at x=0.10. The maximum value of the intrinsic coercive force (H-cj) and magnetic induction coercivity (H-cb) for the magnets has been obtained at x=0.15.
机译:通过传统陶瓷工艺合成了具有Sr1-Xlaxzn2Fe16O27(X = 0-0.25)的化学成分的W型六曲酮曲霉。 通过X射线衍射(XRD),扫描电子显微镜(SEM)和磁性测试仪研究了LA3 +对铁氧体微观结构和磁性和磁性的取代量x的影响。 结果,在X0.20,所有样品在LA替代后是单相。 在x = 0.25处,存在La2O3的另一相。 另外,已经在X = 0.10获得了用于磁体的剩磁(B-R)和最大能量产品((BH)(最多))的最大值。 在X = 0.15处获得了用于磁体的固有矫顽力(H-CJ)和磁感应矫顽力(H-CB)的最大值。

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  • 来源
    《Materials Technology》 |2016年第10期|共5页
  • 作者单位

    Anhui Univ Engn Technol Res Ctr Magnet Mat Hefei 230601 Anhui Peoples R China;

    Anhui Univ Engn Technol Res Ctr Magnet Mat Hefei 230601 Anhui Peoples R China;

    Anhui Univ Engn Technol Res Ctr Magnet Mat Hefei 230601 Anhui Peoples R China;

    Anhui Univ Architecture Dept Math &

    Phys Hefei 230601 Peoples R China;

    Anhui Univ Engn Technol Res Ctr Magnet Mat Hefei 230601 Anhui Peoples R China;

    Anhui Univ Engn Technol Res Ctr Magnet Mat Hefei 230601 Anhui Peoples R China;

    Anhui Univ Engn Technol Res Ctr Magnet Mat Hefei 230601 Anhui Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 工程材料学;
  • 关键词

    W-type hexagonal ferrites; Microstructure; Magnetic properties;

    机译:W型六边形铁氧体;微观结构;磁性;

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