Microstructural characterization of the interaction between 8YPSZ (EB-PVD) thermal barrier coatings and a synthetic CAS

• Published in: Surface & coatings technology Vol. 239; pp. 41 - 48
• Main Authors: Vidal-Sétif, M.H., Rio, C., Boivin, D., Lavigne, O.
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 25.01.2014; Elsevier
• Subjects: 8YPSZ; Applied sciences; CAS; Cross-disciplinary physics: materials science; rheology; Destabilization; EB-PVD; Electron back scattered diffraction (EBSD); Exact sciences and technology; Materials science; Metals. Metallurgy; Nonmetallic coatings; Physics; Production techniques; Surface treatment; Surface treatments; Thermal barrier coatings; Thermal barrier coatings; EB-PVD; 8YPSZ; CAS; Destabilization; Electron back scattered diffraction (EBSD); Electron diffraction; Electron beam; Surface treatments; Non metal coating; Thermal barriers; Physical vapor deposition; Microstructure

Thermal barrier coatings (TBC) in service are prone to the attack by molten calcium–magnesium aluminosilicates (CMAS) resulting from the ingestion of siliceous minerals (dust, sand, volcanic ash) by the aeroengines. As CMAS deposits observed on ex-service parts present complex and highly variable co...