Thermal Barrier Coating on Gamma Titanium Aluminide by EB-PVD

This title is printed to order. This book may have been self-published. If so, we cannot guarantee the quality of the content. In the main most books will have gone through the editing process however some may not. We therefore suggest that you be aware of this before ordering this book. If in doubt check either the author or publisher’s details as we are unable to accept any returns unless they are faulty. Please contact us if you have any questions.

Thermal barrier coating (TBC) systems are indispensable for utilization in gas turbine engines to decrease the thermal effect and enhance turbine efficiency by considerably raising applied gas temperatures. TBCs are typically composed of an underlying metallic bond coat known as MCrAlY (M=Ni, Co) acting as an oxidation resistant layer, and yttria-stabilized zirconia (YSZ) as a ceramic top coat that provides thermal insulation toward the metallic substrate. In this study Inter-metallic alloy based on Gamma Titanium Aluminide was chosen as a substrate due to its low density as compared to the conventional Nickel-based super alloy which made it competent to be an important structural material in high-temperature aerospace and automotive applications. TBC’s bond coat and ceramic top coat were performed by EB-PVD at different partial pressures of Oxygen during deposition of the top layer in order to get deeper insight into the correlation between adhesion and deposition process parameters