Thermodynamic modelling and experimental studies in the design of integrated oxidation protection systems for ceramic matrix composites

摘要

Ceramic matrix composites reinforced with carbon fibres are candidate materials for use in high temperature applications such as gas turbine components and structural components of re-entry vehicles. The performance of these materials is currently limited however by the oxidation of carbon fibres at temperatures above 400 deg.C. Coatings are therefore required which are capable of protecting these composites from oxidation at 1600 deg.C. such coatings generally consist of several layers, each designed to perform a specific function since no satisfactory single layer coating exists [1].