Effect of CVD SiC seal coating on the mechanical properties of Cf /SiC composites generated through CVI

UdayaKumar, A and Stalin, M and Venkateswarlu, K (2013) Effect of CVD SiC seal coating on the mechanical properties of Cf /SiC composites generated through CVI. Surface and Coatings Technology . pp. 1-26. ISSN 0257-8972

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    Abstract

    ICVI derived Cf/SiC composites have gained considerable attention because of their superior tribological and high temperature mechanical properties. In the present work, Cf/SiC composites with and without BN interphase having 90% theoretical density were prepared through ICVI process. The SiC seal coating was applied to the composites through CVD process and the mechanical properties were studied. It was observed that CVD SiC seal coating had improved the mechanical properties significantly. Stabilised BN interface had modified the fibre -matrix interfacial bond strength to 9 MPa and improved the toughness. The microstructure studies gave good support to the mechanical property results.

    Item Type: Journal Article
    Additional Information: Copyright for this article belongs to M/s. Elsevier B.V
    Uncontrolled Keywords: Chemical vapour deposition/infiltration;Boron nitride interphase;Interfacial bond strength;Composites;Work of fracture
    Subjects: CHEMISTRY AND MATERIALS > Chemistry and Materials (General)
    CHEMISTRY AND MATERIALS > Composite Materials
    Division/Department: Materials Science Division, Materials Science Division, Materials Science Division
    Depositing User: Ms. Alphones Mary
    Date Deposited: 07 Mar 2013 15:33
    Last Modified: 07 Mar 2013 15:33
    URI: http://nal-ir.nal.res.in/id/eprint/11497

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