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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Official URL: http://dx.doi.org/10.1016/j.surfcoat.2013.01.007

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: 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
Depositing User: Ms. Alphones Mary
Date Deposited: 07 Mar 2013 10:03
Last Modified: 07 Mar 2013 10:03
URI: http://nal-ir.nal.res.in/id/eprint/11497

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