Low-Temperature Sintering, Densification, and Properties of Z-type Hexaferrite with Bi2O3 Additives |
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| Authors: | Hongguo Zhang Longtu Li Ji Zhou Zhenxing Yue Zhilun Gui |
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| Affiliation: | State Key Laboratory of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China |
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| Abstract: | The effect of the addition of Bi2O3 on the densification, low-temperature sintering, and electromagnetic properties of Z-type planar hexaferrite was investigated. The results show that Bi2O3 additives can improve the densification and promote low-temperature sintering of Z-type hexaferrite prepared by a solid-state reaction method. The presence of Bi2O3 in the grain boundaries and the generation of Fe2+ degrade the initial permeability of the samples but make the quality factor and cut-off frequency increase. Various possible mechanisms involved in generating these effects were also discussed. |
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| Keywords: | ferrites electromagnetic properties densification sinter/sintering |
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