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Coercivity enhancement of SmCo/FeCo nanocomposite magnets by doping eutectic Sm-Zn alloy

机译:通过掺杂共晶SM-Zn合金矫顽力增强SMCO / FECO纳米复合磁体

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摘要

We discover that the coercivity of SmCo/FeCo magnets can be enhanced by doping eutectic Sm-Zn alloy. The magnets without Sm-Zn alloy, having an average grain size of-8 nm, are composed of well-dispersed Sm2Co17 phase and FeCo phase, and the coercivity is only 1.5 kOe. In contrast, the magnets with 5 wt% Sm-Zn alloy, having an average grain size of similar to 12 nm, are composed of SmCo5 dominant phase plus Sm2Co17 minor phase and FeCo phase, and the coercivity is 6.9 kOe. The coercivity enhancement is primarily due to the phase transformation from Sm2Co17 to SmCo5 phase. This work demonstrates a strategy to stabilize the high anisotropy SmCo5 phase and enhance the coercivity in SmCo/FeCo nanocomposite magnets. (c) 2020 Elsevier B.V. All rights reserved.
机译:我们发现通过掺杂共晶SM-Zn合金可以增强SMCO / FECO磁体的矫顽力。没有Sm-Zn合金的磁铁,其平均晶粒尺寸为-8nm,由分散良好分散的SM2CO17相和FECO相组成,矫顽力仅为1.5 koe。相反,具有5wt%SM-Zn合金的磁体,其平均晶粒尺寸类似于12nm,由SMCO5中阶段加上SM2CO17次相和FECO相组成,矫顽力为6.9 koe。矫顽力增强主要是由于SM2CO17到SMCO5相的相变。该工作证明了一种稳定高各向异性SMCO5相的策略,并增强SMCO / FECO纳米复合材料中的矫顽力。 (c)2020 Elsevier B.v.保留所有权利。

著录项

  • 来源
    《Materials Letters》 |2021年第2期|128965.1-128965.4|共4页
  • 作者单位

    Henan Univ Sci & Technol Sch Mat Sci & Engn Luoyang 471023 Peoples R China|Henan Univ Sci & Technol Collabororat Innovat Ctr Nonferrous Met Luoyang 471023 Henan Peoples R China|Henan Key Lab Nonferrous Mat Sci & Proc Technol Luoyang 471023 Peoples R China;

    Henan Univ Sci & Technol Sch Mat Sci & Engn Luoyang 471023 Peoples R China;

    Henan Univ Sci & Technol Sch Mat Sci & Engn Luoyang 471023 Peoples R China;

    Henan Univ Sci & Technol Sch Mat Sci & Engn Luoyang 471023 Peoples R China;

    Henan Univ Sci & Technol Sch Mat Sci & Engn Luoyang 471023 Peoples R 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);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Magnetic materials; Nanocomposites; SmCo/FeCo magnets; Coercivity;

    机译:磁性材料;纳米复合材料;SMCO / FECO磁铁;矫顽力;

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