Environmental Stability and Durability of Environmental Barrier Coatings for SiC/SiC Ceramic Matrix Composites
No abstract available
Zhu, Dongming↗
Engineering topics
Harder, Bryan
Publications and source records attributed to Harder, Bryan.
Advanced Processing and Environmental Barrier Coating System Development for SiC/SiC Ceramic Matrix Composites
No abstract available
Zhu, Dongming↗
Creep Behavior of Hafnia and Ytterbium Silicate Environmental Barrier Coating Systems on SiC/SiC Ceramic Matrix Composites
Environmental barrier coatings will play a crucial role in future advanced gas turbine engines because of their ability to significantly extend the temperature capability and stability of SiC/SiC ceramic matrix composite (CMC) engine components, thus improving the engine performance. In order to develop high performance, robust coating systems for engine components, appropriate test approaches simulating operating temperature gradient and stress environments for evaluating the critical coating properties must be established. In this paper, thermal gradient mechanical testing approaches for evaluating creep and fatigue behavior of environmental barrier coated SiC/SiC CMC systems will be described. The creep and fatigue behavior of Hafnia and ytterbium silicate environmental barrier coatings on SiC/SiC CMC systems will be reported in simulated environmental exposure conditions. The coating failure mechanisms will also be discussed under the heat flux and stress conditions.
Zhu, Dongming↗