Characterization of Si3N4/SiC nanocomposite by Raman scattering and XPS

Woo Seok Cho, Yoon Suk Oh, Chang Sam Kim, Minoru Osada, Masato Kakihana, Dae Soon Lim, Deock Soo Cheong

    Research output: Contribution to journalArticlepeer-review

    41 Citations (Scopus)

    Abstract

    We have synthesized Si3N4/SiC nanocomposites using a commercial polymer. The formed Si3N4/SiC nanocomposites have been studied using Raman scattering and X-ray photoelectron spectroscopy (XPS). The Raman scattering measurements showed that the formation of SiC started at 1200°C and that the main phase was 3C-SiC. The XPS results suggested that the SiC nanoparticles were formed by a chemical reaction of Si provided from Si3N4 with free carbon obtained by pyrolysis of polymer. The XPS results also indicated that residual carbon reacted with N2 to form CNx, which remained as an impurity phase in the final product.

    Original languageEnglish
    Pages (from-to)255-259
    Number of pages5
    JournalJournal of Alloys and Compounds
    Volume285
    Issue number1-2 Complete
    DOIs
    Publication statusPublished - 1999

    ASJC Scopus subject areas

    • Mechanics of Materials
    • Mechanical Engineering
    • Metals and Alloys
    • Materials Chemistry

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