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Synthesis of Plate-Like ZrB2 Grains

Authors

  • Chunfeng Hu,

    Corresponding author
    1. Advanced Materials Processing Unit, National Institute for Materials Science, Ibaraki, Japan
    • Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo, China
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  • Ji Zou,

    1. Department of Metallurgy and Materials Engineering (MTM), Katholieke Universiteit Leuven, Heverlee, Belgium
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  • Qing Huang,

    1. Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo, China
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  • Guojun Zhang,

    1. State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Shanghai, China
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  • Shuqi Guo,

    Corresponding author
    1. Hybrid Materials Unit, National Institute for Materials Science, Ibaraki, Japan
    • Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo, China
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  • Yoshio Sakka

    Corresponding author
    1. Advanced Materials Processing Unit, National Institute for Materials Science, Ibaraki, Japan
    • Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo, China
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    • Member, The American Ceramic Society.

Authors to whom correspondence should be addressed. e-mails: sakka.yoshio@nims.go.jp and hucf@nimte.ac.cn

Abstract

Plate-like ZrB2 grains were synthesized at 1550°C by in situ solid/liquid reaction using Zr and B powders mixed with transition metal (Mo,Nb,Ti, or W) and Si powder. The preferred growth direction of plate grains was along a- or b-axis depending on the initial content of transition metal and silicon in the mixtures. The synthesis mechanism of plate-like grain was possibly related to the catalysis of in situ formed silicides.

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