Synthesis of nanostructured silicon carbide at ultralow temperature using self-assembled polymer micelles as a precursor

    Authors

    Y. X. Yu; X. P. Yang; C. Y. Xu; J. Y. Fang;L. A. An

    Comments

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    Abbreviated Journal Title

    J. Mater. Chem.

    Keywords

    CERAMICS; FABRICATION; CONVERSION; Chemistry, Physical; Materials Science, Multidisciplinary

    Abstract

    Nanostructured SiC ceramics exhibit unusual and superior properties compared to their microstructured counterparts, thus hold promise for widespread applications. We report a novel technique for synthesizing dense nanostructured SiC at an ultralow-temperature without pressure. In this technique, polyvinylsilazane-block-polystyrene (PVSZ-b-PS) block copolymers were synthesized and then self-assembled into nano-scaled micelles with the precursor PVSZ as the core and the sacrificial PS as the shell. The subsequent pyrolysis converted the aggregation of the micelles into dense nanostructured SiC with a grain size of similar to 20-30 nm at 800 degrees C.

    Journal Title

    Journal of Materials Chemistry

    Volume

    21

    Issue/Number

    44

    Publication Date

    1-1-2011

    Document Type

    Article

    Language

    English

    First Page

    17619

    Last Page

    17622

    WOS Identifier

    WOS:000296390600009

    ISSN

    0959-9428

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