Morphology and mechanism study for the synthesis of ZrB2-SiC powders by different methods

Bin Zhao, Yun Zhang, Junping Li, Biyun Yang, Tingyu Wang, Yongzhen Hu, Dongfeng Sun, Ruixing Li, Shu Yin, Zhihai Feng, Tsugio Sato

    Research output: Contribution to journalArticlepeer-review

    22 Citations (Scopus)

    Abstract

    ZrB2-SiC ceramics, whose SiC is generally incorporated into the system by mechanical mixing, are known to have better performance than monolithic ZrB2. Therefore, synthesis of duplex ZrB2-SiC powders is beneficial for improving sinterability and mechanical properties of ZrB2-SiC composites. In the present work, ZrB2-SiC duplex powders with different morphologies were synthesized at 1550 C for 2 h using as-synthesized amorphous hydrous ZrO2-SiO2. Both precipitation and sol-gel methods were used to prepare ZrO2-SiO 2 precursors. ZrB2-SiC powder derived from precipitation method presented a rod-like morphology with smaller irregular particles adhering to them. And the morphology from sol-gel method was equiaxed shape with a very uniform distribution for principal components of Zr and Si.

    Original languageEnglish
    Pages (from-to)1-5
    Number of pages5
    JournalJournal of Solid State Chemistry
    Volume207
    DOIs
    Publication statusPublished - 2013

    Keywords

    • Morphology
    • Precipitation
    • Sol-gel
    • Synthesis
    • ZrB

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Ceramics and Composites
    • Condensed Matter Physics
    • Physical and Theoretical Chemistry
    • Inorganic Chemistry
    • Materials Chemistry

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