Silicoaluminum carbonitride ceramic resist to oxidation/corrosion in water vapor

    Authors

    Y. G. Wang; W. F. Fei; Y. Fan; L. G. Zhang; W. G. Zhang;L. N. An

    Comments

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    Abbreviated Journal Title

    J. Mater. Res.

    Keywords

    SILICON-CARBIDE; PARALINEAR OXIDATION; ENVIRONMENT; PRESSURE; NITRIDE; MULLITE; Materials Science, Multidisciplinary

    Abstract

    The oxidation behavior of polymer-derived SiAlCN ceramic in a water vapor environment was studied at 1400 degrees C. The oxidation and corrosion rates of the SiAlCN are much lower than those of SiCN and pure silicon-based ceramics. The material retains about 75% of its original strength after exposure in water vapor for 300 h at 1400 degrees C. It is believed that the superior resistance of the SiAlCN to water vapor-related oxidation and corrosion is due to the formation of an aluminum-doped silica layer, in which the aluminum has reduced the activity of the silica.

    Journal Title

    Journal of Materials Research

    Volume

    21

    Issue/Number

    7

    Publication Date

    1-1-2006

    Document Type

    Article

    Language

    English

    First Page

    1625

    Last Page

    1628

    WOS Identifier

    WOS:000238789100001

    ISSN

    0884-2914

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