ProgramMaster Logo
Conference Tools for Materials Science & Technology 2019
Register as a New User
Submit An Abstract
Propose A Symposium
Presenter/Author Tools
Organizer/Editor Tools
About this Abstract
Meeting Materials Science & Technology 2019
Symposium Sandphobic Thermal/Environmental Barrier Coatings
Presentation Title Development of Novel CMAS/VA Resistant TBCS: Influence of Chemical Composition and the Microstructure
Author(s) Ravisankar Naraparaju, Juan Gomez Chavez, Christoph Mikulla, Mohammad Rizviul Kabir, Philipp Niemeyer, Peter Mechnich, Uwe Schulz
On-Site Speaker (Planned) Ravisankar Naraparaju
Abstract Scope The CMAS associated degradation of 7YSZ TBC layers is one of the serious problems in aero engines that operate in dusty environments. The most common infiltration mitigation strategies focus on using a reactive material that upon interaction with molten CMAS glass induces its crystallization sealing the porous features and stopping any further infiltration. However, chemical composition of CMAS/VA and the TBC microstructure are highly influential parameters in case of CMAS/TBC interaction. Novel TBCs such as GZO and 65YZ coatings were applied by means of EB-PVD method and their interactions with various CMAS/VA were studied in detail. It was found out that the reaction products were heavily dependent upon the CMAS chemistry. Infiltration tests on various TBC microstructures have proven that the microstructure can be tailored such that the CMAS infiltration kinetics can be hampered. Simultaneously, these results are well supported by microstructural FEM simulations using ABAQUS on the infiltration kinetics.


Army Advances in Sandphobic Thermal/Environmental Barrier Coatings
CMAS-Resistant YSZ-Rare Earth Oxide Composite Coatings
CMAS Removal by Spectrally Guided Laser Ablation
Development of Novel CMAS/VA Resistant TBCS: Influence of Chemical Composition and the Microstructure
Effects of Silicate Melt Chemistry on Thermochemical Interactions with Thermal Barrier Oxides
High Resolution Non-invasive Characterization of Calcium-magnesium-alumino-silicate Infiltration in Thermal Barrier Coatings
Multiphase Thermal Barrier Coatings for Broad-base Resistance to Silicate Deposits
Multlayer, Multifunctional, Thermo-structural Coatings to Mitigate Molten Silicate Attack in Aeroengines
Non-silicate Ceramic T-EBC Coatings for SiC CMCs
Numerical Investigation of Particle Deposition in Gas Turbine Blades
Processing of Laser Surface Modification of Functionally Graded Alumina/CYSZ Thermal Barrier Coating
Progress and Challenges in Understanding CMAS Attack and Developing CMAS-phobic T/EBCs
Turbulence Modulation Effects in Particle-laden Shear Driven Flows and its Impact on Material Deposition

Questions about ProgramMaster? Contact