Abstract
Aluminum is commonly observed in the surface region of SiC fibers in hot-pressed glass ceramic matrix composites. It is believed to be the result of interface reactions with Al-containing matrices. However, the influence of aluminum migration on the evolution of interphases, especially carbon enrichment, still remains unknown. In this study, reaction couples between an alumino-silicate glass and silicon-oxycarbide were used to study mass transport and interphase formation. The silicon oxycarbide, synthesized using a sol-gel process, was used to simulate the reactive phase of polymer-derived SiC fibers; in some case, it was doped with Al. A strong influence of aluminum on the carbon enrichment was observed. Using a thermodynamic model, the mechanism of the interphase evolution will be discussed.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
