Perspectives on Environmental Barrier Coatings (EBCs) Manufactured via Air Plasma Spray (APS) on Ceramic Matrix Composites (CMCs): A Tutorial Paper

There are many sets of information in the literature (e.g., papers, books and websites) about great achievements that expected for aerospace gas turbine engines by employment ceramic matrix composites (CMCs) thermally sprayed environmental barrier coatings (EBCs) their hot zones combustion chambers, vanes, shrouds, blades afterburners). Among these achievements, it is typically highlighted (i) weight reduction, (ii) reduced fuel consumption, (iii) higher operation temperatures, (iv) superior thrust-to-weight ratio (v) lower emission toxic gases to atmosphere. Although true, they generally not well-explained reader on how together come be. In addition, according “conventional wisdom”, some engineering feats fact opposing each other temperatures versus emissions). The objective this tutorial paper present achieved concomitant combination imaginative engineering. It will explain non-stop driving force increasing temperatures; show basic concepts CMCs, paramount need EBCs, complexity creating EBC architectures via air plasma spray (APS). Finally, highlights EBCs/CMCs tested at high temperature be provided. content shall understood anyone with knowledge materials processing surface