颗粒形状对SrFe12O19/CoxFey复合材料磁性行为的影响

IF 3 3区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Journal of Magnetism and Magnetic Materials Pub Date : 2025-08-20 DOI:10.1016/j.jmmm.2025.173454

V. Bilovol , A. Quesada , A. Kmita , D. Lachowicz , M. Gajewska

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引用次数: 0

摘要

在这项研究中，我们研究了磁硬/软复合材料，特别是SrFe12O19/Co2Fe和SrFe12O19/CoFe2的磁性能。采用人工混合和超声混合两种方法，将前驱体材料以90:10的质量比组合。SrFe12O19/CoFe2复合材料的剩余磁化强度比纯SrFe12O19提高了约12%。透射电镜图像显示，性能的增强可能归因于CoFe2纳米颗粒的细长形态，而不是更球形的Co2Fe颗粒。这种各向异性形状可能通过增强形状各向异性和在复合基体内更好地排列软磁相来改善磁性能。

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Influence of particle shape on magnetic behavior of SrFe12O19/CoxFey composites

In this study, we investigate the magnetic properties of magnetically hard/soft composites, specifically SrFe₁₂O₁₉/Co₂Fe and SrFe₁₂O₁₉/CoFe₂. The precursor materials were combined in a 90:10 mass ratio using both manual mixing and ultrasonication methods. The SrFe₁₂O₁₉/CoFe₂ composite exhibited a notable improvement in remanent magnetization—approximately 12% higher than that of pure SrFe₁₂O₁₉. Transmission electron microscopy images suggest that the enhanced performance may be attributed to the elongated morphology of the CoFe₂ nanoparticles, in contrast to the more spherical Co₂Fe particles. This anisotropic shape likely contributes to improved magnetic properties through enhanced shape anisotropy and better alignment of the soft magnetic phase within the composite matrix.

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来源期刊

Journal of Magnetism and Magnetic Materials 物理-材料科学：综合

CiteScore

5.30

自引率

11.10%

发文量

1149

审稿时长

59 days

期刊介绍： The Journal of Magnetism and Magnetic Materials provides an important forum for the disclosure and discussion of original contributions covering the whole spectrum of topics, from basic magnetism to the technology and applications of magnetic materials. The journal encourages greater interaction between the basic and applied sub-disciplines of magnetism with comprehensive review articles, in addition to full-length contributions. In addition, other categories of contributions are welcome, including Critical Focused issues, Current Perspectives and Outreach to the General Public. Main Categories: Full-length articles: Technically original research documents that report results of value to the communities that comprise the journal audience. The link between chemical, structural and microstructural properties on the one hand and magnetic properties on the other hand are encouraged. In addition to general topics covering all areas of magnetism and magnetic materials, the full-length articles also include three sub-sections, focusing on Nanomagnetism, Spintronics and Applications. The sub-section on Nanomagnetism contains articles on magnetic nanoparticles, nanowires, thin films, 2D materials and other nanoscale magnetic materials and their applications. The sub-section on Spintronics contains articles on magnetoresistance, magnetoimpedance, magneto-optical phenomena, Micro-Electro-Mechanical Systems (MEMS), and other topics related to spin current control and magneto-transport phenomena. The sub-section on Applications display papers that focus on applications of magnetic materials. The applications need to show a connection to magnetism. Review articles: Review articles organize, clarify, and summarize existing major works in the areas covered by the Journal and provide comprehensive citations to the full spectrum of relevant literature.