Structural and magnetic properties of plate-like W-type barium ferrites synthesized with a combination method of molten salt and sol-gel

Z. H. Yang; Z. W. Li; Y. H. Yang

doi:10.1016/j.matchemphys.2014.01.043

Structural and magnetic properties of plate-like W-type barium ferrites synthesized with a combination method of molten salt and sol-gel

Z. H. Yang, Z. W. Li, Y. H. Yang

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

Abstract

Plate-like W-type barium ferrites (BaCoZnFe₁₆O₂₇) were prepared by using a combined method of molten salt and a sol-gel process. Pure plate-like W-type barium ferrite with large size about 25 μm and high aspect ratio (diameter/thickness) of ∼35 was obtained at a sintering temperature of 1200 C. Morphology, phase evolution and static properties of the samples sintered at different temperatures (800-1200 C) and dynamic magnetic properties of their composites with silicon resin were investigated by using SEM, XRD, VSM and VNA. It was found that the saturation magnetization M _s increased with increasing sintering temperature, whereas the coercivity H_c decreased. Silicon resin composites filled with 45 vol% of the plate-like BaCoZnFe₁₆O₂₇ particles sintered at 1200 C exhibited promising microwave attenuation properties.

Original language	English
Pages (from-to)	568-574
Number of pages	7
Journal	Materials Chemistry and Physics
Volume	144
Issue number	3
DOIs	https://doi.org/10.1016/j.matchemphys.2014.01.043
State	Published - 15 Apr 2014
Externally published	Yes

Keywords

Ceramics
Magnetic materials
Magnetic properties
Microstructure
Sol-gel growth

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10.1016/j.matchemphys.2014.01.043

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title = "Structural and magnetic properties of plate-like W-type barium ferrites synthesized with a combination method of molten salt and sol-gel",

abstract = "Plate-like W-type barium ferrites (BaCoZnFe16O27) were prepared by using a combined method of molten salt and a sol-gel process. Pure plate-like W-type barium ferrite with large size about 25 μm and high aspect ratio (diameter/thickness) of ∼35 was obtained at a sintering temperature of 1200 C. Morphology, phase evolution and static properties of the samples sintered at different temperatures (800-1200 C) and dynamic magnetic properties of their composites with silicon resin were investigated by using SEM, XRD, VSM and VNA. It was found that the saturation magnetization M s increased with increasing sintering temperature, whereas the coercivity Hc decreased. Silicon resin composites filled with 45 vol% of the plate-like BaCoZnFe16O27 particles sintered at 1200 C exhibited promising microwave attenuation properties.",

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AU - Yang, Z. H.

AU - Li, Z. W.

AU - Yang, Y. H.

PY - 2014/4/15

Y1 - 2014/4/15

N2 - Plate-like W-type barium ferrites (BaCoZnFe16O27) were prepared by using a combined method of molten salt and a sol-gel process. Pure plate-like W-type barium ferrite with large size about 25 μm and high aspect ratio (diameter/thickness) of ∼35 was obtained at a sintering temperature of 1200 C. Morphology, phase evolution and static properties of the samples sintered at different temperatures (800-1200 C) and dynamic magnetic properties of their composites with silicon resin were investigated by using SEM, XRD, VSM and VNA. It was found that the saturation magnetization M s increased with increasing sintering temperature, whereas the coercivity Hc decreased. Silicon resin composites filled with 45 vol% of the plate-like BaCoZnFe16O27 particles sintered at 1200 C exhibited promising microwave attenuation properties.

AB - Plate-like W-type barium ferrites (BaCoZnFe16O27) were prepared by using a combined method of molten salt and a sol-gel process. Pure plate-like W-type barium ferrite with large size about 25 μm and high aspect ratio (diameter/thickness) of ∼35 was obtained at a sintering temperature of 1200 C. Morphology, phase evolution and static properties of the samples sintered at different temperatures (800-1200 C) and dynamic magnetic properties of their composites with silicon resin were investigated by using SEM, XRD, VSM and VNA. It was found that the saturation magnetization M s increased with increasing sintering temperature, whereas the coercivity Hc decreased. Silicon resin composites filled with 45 vol% of the plate-like BaCoZnFe16O27 particles sintered at 1200 C exhibited promising microwave attenuation properties.

KW - Ceramics

KW - Magnetic materials

KW - Magnetic properties

KW - Microstructure

KW - Sol-gel growth

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SN - 0254-0584

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JO - Materials Chemistry and Physics

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Structural and magnetic properties of plate-like W-type barium ferrites synthesized with a combination method of molten salt and sol-gel

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Keywords

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