As-Sprayed Highly Crystalline Yb2Si2O7 Environmental Barrier Coatings (EBCs) by Atmospheric Plasma Spray (APS)

F Arhami, F Ben Ettouil, C Moreau - Journal of Thermal Spray Technology, 2023 - Springer
High amorphous phase formation tendency, a desirable microstructure and phase
composition, as well as silicon evaporation, are the key challenges of spraying Yb2Si2O7 …

Corrosion behavior of PS-PVD spray Yb2Si2O7 environmental barrier coatings during continuous water vapor exposure

J Wu, W Yang, X Zhang, C Wang, X Zhuo, Y Zhan… - Corrosion …, 2023 - Elsevier
The corrosion behavior of Si/Yb 2 Si 2 O 7 environmental barrier coatings prepared by
plasma spray-physical vapor deposition during continuous water vapor exposure were …

Crack healing mechanisms in atmospheric plasma sprayed Yb-silicate coatings during post-process heat treatment

E Bakan, R Vaßen - Journal of the European Ceramic Society, 2023 - Elsevier
The microstructural evolution of partially amorphous, atmospheric plasma-sprayed Yb-
silicate coatings was investigated after heat treatment (HT, 1300° C). Open porosity as well …

Thermochemical Stability of Yb2Si2O7 Environmental Barrier Coatings During Thermal Cycling and Water Vapor Corrosion at 1350 °C

L Chen, B Yang, GR Li, GJ Yang - Journal of Thermal Spray Technology, 2023 - Springer
In this study, Si/mullite/Yb2Si2O7 trilayer environmental barrier coatings (EBCs) were
prepared by atmospheric plasma spraying. The thermochemical stability of trilayer EBCs …

Microstructure and mechanical properties evolution in tri-layer Si-HfO2/Yb2Si2O7/Yb2SiO5 environmental barrier coating by PS-PVD during post-annealing

M Zhang, R Liu, Q Miao, W Liang, H Zhao, K Zang… - Ceramics …, 2023 - Elsevier
In recent years, the plasma spray-physical vapor deposition (PS-PVD) process has garnered
significant attention as an advanced method for producing environmental barrier coatings …

Interaction of ytterbium pyrosilicate environmental-barrier-coating ceramics with molten calcia-magnesia-aluminosilicate glass: Part II, Interfaces

H Sternlicht, DW McComb, NP Padture - Acta Materialia, 2022 - Elsevier
Interfaces in as-processed β-Yb 2 Si 2 O 7 environmental barrier coating (EBC) ceramics,
and those after high-temperature (1500° C) interaction with a calcia-magnesia …

Metastable to stable phase transformation in atmospheric plasma sprayed Yb-silicate coating during post-heat treatment

E Bakan, YJ Sohn, R Vassen - Scripta Materialia, 2023 - Elsevier
Yb-silicate is used as volatilization barrier material in environmental barrier coating
applications. In this study, metastable to stable phase transformation in highly amorphous …

Suppressing the phase-transition-induced cracking of SiO2 TGOs by lattice solid solution

L Chen, WJ Wang, JH Li, GJ Yang - Journal of the European Ceramic …, 2023 - Elsevier
The Si coating lifetime at 1350℃ is limited by the phase-transition-induced cracking of the
SiO 2 scale. In this study, Si-stabilizer duplex coatings were proposed to eliminate the …

Environmental barrier coatings on enhanced roughness SiC: Effect of plasma spraying conditions on properties and performance

M Ridley, E Garcia, K Kane, S Sampath… - Journal of the European …, 2023 - Elsevier
Environmental barrier coatings for SiC/SiC composites are limited by the melting
temperature of the Si bond coating near 1414° C. Systems without a bond coating may be …

Characterization of Yb2SiO5-based environmental barrier coating prepared by plasma spray–physical vapor deposition

Q Guo, W He, J He, J Wen, W Chen, J Sun, H Guo - Ceramics International, 2022 - Elsevier
Due to the high-input power compared to atmospheric plasma spraying (APS), plasma spray-
physical vapor deposition (PS-PVD) can primarily achieve a splat-like deposition, allowing …