Reaction path and microstructures of Ti3SiC2/SiC composite by spark plasma sintering

Jianfeng Zhang, Lianjun Wang, Wan Jiang, Lidong Chen

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    2 Citations (Scopus)

    Abstract

    Ti3SiC2/20vol%SiC composite was synthesized by spark plasma sintering (SPS) under a pressure of 50MPa at 1350°C using Ti, Si and C as starting powders. The phase constituents and microstructures of the composite were investigated. X-ray diffraction (XRD) results demonstrated that Ti reacted with C to form TiC firstly, then TiSi2 formed from Ti and Si. The formation of Ti3SiC2 might come from two reactions. One was that TiSi2, Ti and TiC reacted directly to form monolithic Ti3SiC2. The other one was that TiSi 2, Ti and C reacted to form Ti3SiC2 and SiC. The EPMA results showed that the main phases were Ti3SiC2 and SiC with a minor content of TiC as impurity. TiC particles less than 1μm in diameter distributed in SiC phase.

    Original languageEnglish
    Pages (from-to)1368-1370
    Number of pages3
    JournalKey Engineering Materials
    Volume336-338 II
    DOIs
    Publication statusPublished - 2007 Jan 1

    Keywords

    • In-situ fabrication
    • SPS
    • TiSiC/SiC composite

    ASJC Scopus subject areas

    • Materials Science(all)
    • Mechanics of Materials
    • Mechanical Engineering

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