Magnetic Properties and Resistivity of Soft Magnetic Composites Regulated by SPS Enhanced Interface Reaction Mechanism

doi:10.15541/jim20200055

Abstract

Abstract: The design trend of the insulating layer of soft magnetic composite materials (SMCs) is to consider both their soft magnetic properties and resistivity. In this study, using Fe/Ni_0.5Zn_0.5Fe₂O₄ composite system as an example, the influence of MnO₂ oxidant on the soft magnetic properties and resistivity of the samples is studied, and the redox mechanism resulting from spark plasma sintering (SPS) at SMCs interface which improves the soft magnetic properties and resistivity is revealed. The Fe@Ni_0.5Zn_0.5Fe₂O₄(MnO₂) core-shell composite powders with different amount of MnO₂ (0, 0.1wt%, 0.3wt%, 0.5wt%, 1.0wt%) are prepared by ball milling, the Fe/Ni_0.5Zn_0.5Fe₂O₄(MnO₂) bulk SMCs are prepared by SPS. Their structures are characterized by SEM and XRD, and their electromagnetic properties are tested by precise resistance tester and vibrating sample magnetometer. It is found that the resistivity of Fe/Ni_0.5Zn_0.5Fe₂O₄(MnO₂) bulk SMCs with 0.5wt% MnO₂ is 33.7% higher than that without MnO₂, the saturation magnetic induction strength is 6.9% higher. The results show that the SPS sintering enhances the rapid REDOX reaction at the SMCs interface, and the addition of MnO₂ oxidants changes the ions concentration of ferrite at the SMCs interface, shows multiple effects of simultaneously improving the soft magnetic properties and resistivity of SMCs, because it reduces the B-bit electron transition frequency, increases the effective Bohr magneton number, and improves the B-B magnetic superexchange.

Key words: soft magnetic composite materials, spark plasma sintering, interface reaction, resistivity, magnetic properties

CLC Number:

TB33
TM271

ZHAO Zhankui, LI Tao, LU Shuhan, WANG Minggang, ZHANG Jingjing, CHENG Daowen, WU Chen, CHI Yue, WANG Hongli. Magnetic Properties and Resistivity of Soft Magnetic Composites Regulated by SPS Enhanced Interface Reaction Mechanism[J]. Journal of Inorganic Materials, 2020, 35(11): 1223-1226.

References

[1] DU YOU-WEI.Progress of magnetic materials.Journal of Functional Materials, 2014(10): 1-4.
[2] SILVEYRA J M, FERRARA E, HUBER D L, ,et al. Soft magnetic materials for a sustainable. Soft magnetic materials for a sustainable and electrified world. Science, 2018. 362(6414): eaao0195.
[3] WU SHEN, YAN MI.Research progress on soft magnetic composites.Materials China, 2018, 37(08): 582-589.
[4] SHOKROLLAHI H, JANGHORBAN K.Soft magnetic composite materials (SMCs).Journal of Materials Processing Technology, 2007, 189(1/2/3): 1-12.
[5] FLOCH L M, MATTEI J L, LAURENT P, et al. A physical model for heterogeneous magnetic materials.Journal of Magnetism and Magnetic Materials, 1995,140-144: 2191-2192.
[6] MAEDA T, TOYODE H, IGARASHI N,et al. Development of super low iron-loss P/M soft magnetic material. SEI Technica Review, 2005, 60: 3.
[7] LI XIAO-LONG, DONG YA-QIANG, LIU MIN,et al. New Fe-based amorphous soft magnetic composites with significant enhancement of magnetic properties by compositing with nano-(NiZn)Fe₂O₄. Journal of Journal of Alloys and Compounds, 2017, 696: 1323-1328.
[8] LI JING-XIN, YU JING, LI WANG-CHANG,et al. The preparation and magnetic performance of the iron-based soft magnetic composites with the Fe@Fe₃O₄ powder of in situ surface oxidation. Journal of Magnetism & Magnetic Materials, 2018, 454: 103-109.
[9] LI SHI-GENG, LIU RU-TIE, XIANG XIONG.Fe-based soft magnetic composites with high permeability and low core loss by in situ coating ZnFe₂O₄ layer.Journal of Materials Science, 2020, 55(1): 274-282.
[10] WANG MING-GANG, ZHAN ZHAO, DENG NA,et al. Preparation of pure iron/Ni-Zn ferrite high strength soft magnetic composite by spark plasma sintering. Journal of Magnetism and Magnetic Materials, 2014, 361: 166-169.
[11] GAO L, MIYAMOTO H.Spark plasma sintering technology.Journal of Inorganic Materials, 1997, 12(2): 129-133.
[12] 李荫远, 李国栋.铁氧体物理学.北京:科学出版社, 1978: 26-61.
[13] NAHONORI M.Electric conduction of ferrites containing Fe²+-ions.Journal of the Physical Society of Japan, 1961, 16(2): 206-208.

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