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首页> 外文期刊>Journal of Materials Research >Effects of La doping on the structural and magnetic properties of Sr_(1-x)La_xFe_(11.75)Co_(0.10)Zn_(0.15)O_(19) hexagonal ferrites
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Effects of La doping on the structural and magnetic properties of Sr_(1-x)La_xFe_(11.75)Co_(0.10)Zn_(0.15)O_(19) hexagonal ferrites

机译：La掺杂对Sr_（1-x）La_xFe_（11.75）Co_（0.10）Zn_（0.15）O_（19）六角型铁氧体结构和磁性的影响

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摘要

The M-type hexaferrite Sr_(1-x)La_xFe_(11.75)Co_(0.10)Zn_(0.15)O_(19) (0 ≤ x ≤ 0.7) magnetic powders and magnets were synthesized by the ceramic process. The phase constituents of the magnetic powders were analyzed by x-ray diffraction. There is a single magnetoplumbite phase in the magnetic powders with La content (0.2 ≤ x ≤ 0.4). For the magnetic powders containing La content (0 ≤ x ≤ 0.1) or (0.5 ≤ x ≤ 0.7), magnetic impurities coexist in the structure. The microstructures of the magnets were characterized by field emission scanning electron microscopy. The magnets consist of homogenously distributed ferrite particles with the hexagonal structures. The magnetic properties of the magnets were measured by a permanent magnetic measure equipment. The remanence, maximum energy product, and H_k/H_(cj) ratio of the magnets at x = 0.3 reach the maximum values. However, the intrinsic coercivity and magnetic induction coercivity of the magnets at x = 0.2 reach the maximum values.
机译：通过陶瓷工艺合成了M型六铁氧体Sr_（1-x）La_xFe_（11.75）Co_（0.10）Zn_（0.15）O_（19）（0≤x≤0.7）磁性粉末和磁体。通过X射线衍射分析了磁性粉末的相组成。 La含量（0.2≤x≤0.4）的磁性粉末中只有一个磁铅石相。对于含有La含量（0≤x≤0.1）或（0.5≤x≤0.7）的磁性粉末，磁性杂质共存于结构中。通过场发射扫描电子显微镜表征了磁体的微观结构。磁铁由具有六角形结构的均匀分布的铁氧体颗粒组成。磁体的磁性能通过永磁测量设备测量。 x = 0.3时，磁体的剩磁，最大能量乘积和H_k / H_（cj）比达到最大值。但是，磁体在x = 0.2时的固有矫顽力和磁感应矫顽力达到最大值。

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  • 来源
    《Journal of Materials Research》 |2015年第11期|1844-1851|共8页
  • 作者

    Yujie Yang; Fanhou Wang; Juxiang Shao; Duohui Huang; Zenghui Gao; Qilong Cao; Mingjie Wan;

  • 作者单位

    Computational Physics Key Laboratory of Sichuan Province, Yibin University, Yibin 644000, People's Republic of China;

    Computational Physics Key Laboratory of Sichuan Province, Yibin University, Yibin 644000, People's Republic of China;

    Computational Physics Key Laboratory of Sichuan Province, Yibin University, Yibin 644000, People's Republic of China;

    Computational Physics Key Laboratory of Sichuan Province, Yibin University, Yibin 644000, People's Republic of China;

    Computational Physics Key Laboratory of Sichuan Province, Yibin University, Yibin 644000, People's Republic of China;

    Computational Physics Key Laboratory of Sichuan Province, Yibin University, Yibin 644000, People's Republic of China;

    Computational Physics Key Laboratory of Sichuan Province, Yibin University, Yibin 644000, People's Republic of China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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