ProgramMaster Logo
Conference Tools for Materials Science & Technology 2020
Login
Register as a New User
Help
Submit An Abstract
Propose A Symposium
Presenter/Author Tools
Organizer/Editor Tools
About this Abstract
Meeting Materials Science & Technology 2020
Symposium High Temperature Corrosion and Degradation of Structural Materials
Presentation Title Thermochemical Stability of EBC Silicates in High-temperature High-velocity Water Vapor
Author(s) Mackenzie Ridley, Elizabeth J. Opila
On-Site Speaker (Planned) Elizabeth J. Opila
Abstract Scope Complex silicates such as hafnium silicates, barium strontium alumino silicates, and rare earth-monosilicates and -disilicates are candidates for environmental barrier coating systems. One key property requirement of these materials is their thermochemical stability in water vapor-containing combustion environments. All these complex silicates react with high temperature water vapor to form Si(OH)4(g) and solid silica-depleted product phases. The rate of this reaction depends on the temperature, water vapor partial pressure, gas velocity and the silica activity in the silicate. However, other factors such as the stability of the other oxide components and the resulting product microstructure also play a role in determining the material degradation rate. Results from “steam-jet” furnace exposures of complex silicates in high-temperature (1200 to 1400C) high-velocity (up to 200 m/s) water vapor will be presented, exploring the rate limiting mechanisms for thermochemical degradation of these EBC candidate materials.

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Corrosion Study of Stainless Steel 316 with Different Coatings in MgCl2-KCl Heat Transfer Fluid
Effect of Al Addition on Oxidation Behavior of a New Mo-Si-B Alloy
Elucidating Influence of Alloy Composition, Thermal Cycling and Environment on Oxidation Behavior of Engine Exhaust Valve Materials
Environmental Resistance and Microstructure Design in Mo-Si-B Alloys
Exploring Materials Options for sCO2 Applications: Steels to Cermets
Influence of the Water Vapor on Oxide Scale and Alpha Case Layer in Ti6Al4V
Introductory Comments: High-temperature Corrosion and Degradation of Structural Materials
Kinetic Modeling of High-temperature Oxidation of Pure Metals by Incorporating Wagner’s Theory into the CALPHAD Approach
Long-term Oxidation Behavior of Chromia-forming Alloys in High-temperature CO2 and Air
Machine Learning and Data Analytics for Accelerating High-temperature, Corrosion-resistant Materials Design
Metal Dusting of Ni-based Alloys at Elevated Pressure in Different Gas Compositions
The Effect of Surface Treatment on the Formation, Structure, and Chemistry of Protective Oxide Scale on High-temperature Oxidation-resistant Nickel Alloys
Thermochemical Stability of EBC Silicates in High-temperature High-velocity Water Vapor

Questions about ProgramMaster? Contact programming@programmaster.org