Synthesis of nanocrystalline boron carbide via a solvothermal reduction of CCl4 in the presence of amorphous boron powder

Yunle Gu, Luyang Chen, Yitai Qian, Wanqun Zhang, Jianhua Ma

    Research output: Contribution to journalArticle

    29 Citations (Scopus)

    Abstract

    Nanocrystalline boron carbide (B4C) was synthesized via a solvothermal reduction of carbon tetrachloride using metallic lithium as reductant in the presence of amorphous boron powder at 600°C in an autoclave. The X-ray diffraction pattern of the product powder was indexed to the hexagonal B4C phase, with lattice constants a = 5.606 and c = 12.089 A. The sample was also characterized by Raman spectrum, X-ray photoelectron spectroscopy and inductively coupled plasma atomic emission spectrometry. Transmission electron microscopy revealed that the B4C nanocrystallites were slightly agglomerated, with a particle size of approximately 15-40 nm in diameter.

    Original languageEnglish
    Pages (from-to)225-227
    Number of pages3
    JournalJournal of the American Ceramic Society
    Volume88
    Issue number1
    DOIs
    Publication statusPublished - 2005 Jan

    ASJC Scopus subject areas

    • Ceramics and Composites
    • Materials Chemistry

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