Challenging ceramic matrix composites for applications in severe environments

Author: Naslain R.  

Publisher: Taylor & Francis Ltd

ISSN: 1568-5519

Source: Advanced Composite Materials, Vol.5, Iss.1, 1995-01, pp. : 35-44

Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.

Previous Menu Next

Abstract

Non-brittle ceramic matrix composites (CMCs) consisting of a ceramic matrix reinforced with continuous fibers, such as the SiC/SiC composites, exhibit outstanding mechanical properties, when properly processed. Tensile failure stress as high as 400 MPa, tensile failure strain close to 1% and energy release rate of the order of several 10 KJ.m-2 are currently achieved for 2D-SiC/PyC/SiC. The main subject of concern is probably the effect of oxidizing environment under loading. The present status of knowledge and further improvements of the materials are presented and discussed.