In situ fabrication of TiC/Ti3Al/Ti2AlC composite by spark plasma sintering technology

Wan Jiang, Lu Shi, Lianjun Wang, Jianfeng Zhang

    Research output: Contribution to journalArticle

    8 Citations (Scopus)

    Abstract

    A powder mixture of Ti, Al4C3 and graphite was adopted to synthesize a new TiC/Ti3Al/Ti2AlC composite by spark plasma sintering. The reaction route was proposed from XRD analysis. TiC, Ti3Al and Ti2AlC formed from 800°C with TiC x and Ti3Aly acting as the intermediate phases until the reaction process completed at 1200°C. It was found from TEM observation that Ti3Al underwent an intergrowth relationship with TiC grains inside the Ti2AlC matrix due to the in situ reaction sintering. The average hardness, fracture toughness, Young's modulus and bending strength of the composite were 10.2 ± 0.6 GPa, 6.5 ± 0.2 MPa·m1/2, 436 ± 11MPa and 227 ± 13GPa, respectively.

    Original languageEnglish
    Pages (from-to)872-875
    Number of pages4
    JournalJournal of the Ceramic Society of Japan
    Volume118
    Issue number1382
    DOIs
    Publication statusPublished - 2010 Oct

    Keywords

    • Composite
    • Spark plasma sintering-reactive synthesis (SPS-RS)

    ASJC Scopus subject areas

    • Ceramics and Composites
    • Chemistry(all)
    • Condensed Matter Physics
    • Materials Chemistry

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