Polymer-derived SiAlCN ceramics resist oxidation at 1400 degrees C

    Authors

    Y. G. Wang; Y. Fan; L. G. Zhang; W. G. Zhang;L. A. An

    Comments

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    Abbreviated Journal Title

    Scr. Mater.

    Keywords

    SiAlCN; oxidation; precursor; AMORPHOUS-SILICON CARBONITRIDE; C-N CERAMICS; HIGH-TEMPERATURE; PRECURSOR; KINETICS; VISCOSITY; PYROLYSIS; CORROSION; BEHAVIOR; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering

    Abstract

    The oxidation kinetics of polymer-derived SiAlCN ceramics are determined at 1400 degrees C by measuring oxide-scale thickness as a function of oxidation time. The results reveal that the SiAlCN ceramics possess much better oxidation resistance than polymer-derived SiCN without Al, pure SiC and Si3N4. X-ray diffraction studies reveal that the oxide scales consist of cristobalite, plus a small amount of mullite for the sample with high aluminum-content. The reason that the SiAlCNs exhibited better oxidation resistance is discussed. (c) 2006 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

    Journal Title

    Scripta Materialia

    Volume

    55

    Issue/Number

    4

    Publication Date

    1-1-2006

    Document Type

    Article

    Language

    English

    First Page

    295

    Last Page

    297

    WOS Identifier

    WOS:000238815800004

    ISSN

    1359-6462

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