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首页> 外文期刊>Physica, B. Condensed Matter >Magnetic properties and microstructure of Sm-Co-Fe-Cu-Zr-Hf spark plasma sintered magnets
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Magnetic properties and microstructure of Sm-Co-Fe-Cu-Zr-Hf spark plasma sintered magnets

机译：SM-CO-FE-CU-ZR-HF火花等离子体烧结磁体的磁性和微观结构

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摘要

In this work, Sm24.6Co50Fe17.4Cu5.7Zr2.3-xHfx (x = 0-2.0) ribbons and magnets were prepared by melt-spinning method and spark plasma sintering (SPS) technique. The magnetic properties of the melt-spun ribbons with Hf addition are much higher than those of the Hf-free ribbons in the temperature range of 300-400 K. The optimal comprehensive magnetic properties of ribbons and isotropic magnets were obtained with 1.0 wt% Hf substitution. Microstructural results showed that Hf elements do not enter into the hard magnetic 1:7H and 2:17R phase in SPSed magnets and Zr-Hf rich phases are formed around grain boundaries as particulates. The enhancement of magnetic properties of the ribbons and SPSed magnets can be attributed to grain refinement and more uniform microstructure as a result of Hf addition. The micro-twin structure of 2:17R phase also have been discovered in the spark plasma sintered magnets. This work may provide a rapid preparation of Sm2Co17 magnets.
机译：在这项工作中，Sm24。6Co50Fe17。4Cu5。7Zr2。采用熔融纺丝法和放电等离子烧结（SPS）技术制备了3-xHfx（x=0-2.0）薄带和磁体。在300-400K温度范围内，添加Hf的熔纺薄带的磁性能远高于无Hf薄带。当Hf含量为1.0wt%时，薄带和各向同性磁体的综合磁性能最佳。显微组织分析结果表明，在SPSed磁体中，Hf元素没有进入硬磁1:7H和2:17R相，富Zr-Hf相以颗粒形式在晶界附近形成。薄带和SPSed磁体磁性能的增强可归因于添加Hf后晶粒细化和更均匀的微观结构。在火花等离子体烧结磁体中也发现了2:17R相的微孪晶结构。这项工作可以为快速制备Sm2Co17磁体提供依据。

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  • 来源
    《Physica, B. Condensed Matter》 |2021年第1期|共7页
  • 作者

    Song Jie; Jiang Qingzheng; Rehman Sajjad Ur; He Lunke; Li Xiang; Chen Youwei; Zhao Chuanjia; Zhong Zhenchen;

  • 作者单位

    Jiangxi Univ Sci &

    Technol Jiangxi Key Lab Rare Earth Magnet Mat &

    Devices Ganzhou 341000 Peoples R China;

    Jiangxi Univ Sci &

    Technol Jiangxi Key Lab Rare Earth Magnet Mat &

    Devices Ganzhou 341000 Peoples R China;

    Jiangxi Univ Sci &

    Technol Jiangxi Key Lab Rare Earth Magnet Mat &

    Devices Ganzhou 341000 Peoples R China;

    Jiangxi Univ Sci &

    Technol Jiangxi Key Lab Rare Earth Magnet Mat &

    Devices Ganzhou 341000 Peoples R China;

    Jiangxi Univ Sci &

    Technol Jiangxi Key Lab Rare Earth Magnet Mat &

    Devices Ganzhou 341000 Peoples R China;

    Jiangxi Univ Sci &

    Technol Jiangxi Key Lab Rare Earth Magnet Mat &

    Devices Ganzhou 341000 Peoples R China;

    Jiangxi Univ Sci &

    Technol Jiangxi Key Lab Rare Earth Magnet Mat &

    Devices Ganzhou 341000 Peoples R China;

    Jiangxi Univ Sci &

    Technol Jiangxi Key Lab Rare Earth Magnet Mat &

    Devices Ganzhou 341000 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 物理学;
  • 关键词

    Permanent magnets; Sm-Co magnets; Magnetic properties; Spark plasma sintered magnets; Microstructure;

    机译：永磁体;钐钴磁体;磁性;火花等离子体烧结磁体;微观结构;

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