Technical Symposium MA
Symposium MA focuses on surface engineering and materials science of protective and high-temperature coatings. The interaction of coating materials with harsh environmental conditions is addressed, including high temperatures, thermochemical environments as well as mechanical loads. The environmental impacts include phenomena such as thermomechanical wear (e.g., abrasion, erosion, or mechanical stress), high-temperature aging, corrosion (e.g., oxidation, sulfidation, carburization, and water-accelerated degradation), or catalytic and physical fouling (e.g., coking, ash fouling, and slagging). The symposium addresses as well coating deposition processes, architectural designs, and process-structure-property relationships of protective coatings. The protective coating materials range from metallic alloys to ceramics such as nitrides, borides, oxides, or carbides. Furthermore, specific alloying strategies such as high entropy alloys (HEAs) and other multi-principal-element materials obtaining unique chemical and physical properties are of interest. The application areas span the energy generation, the aviation sector as well as machining industry highlighting new developments towards zero GHG emission and sustainability.
MA1. Coatings to Resist High-Temperature Oxidation, Corrosion, and Fouling
This session spans all aspects of the design, processing, and performance of coatings to resist high-temperature oxidation, corrosion, and fouling. Topics include composition and process optimization, characterization of coatings and reaction products, development of advanced processing methods such as additive manufacturing, modeling of fabrication processes and degradation mechanisms, lifetime prediction, and performance assessment in realistic conditions (atmosphere, stress, cycling, erosion, etc.). Environments of interest include steam, SCO2, molten salts, liquid metal, hydrogen, ammonia, biofuels, etc. for applications such as turbomachinery, fuel cell and electrolyzers for green hydrogen production, concentrating solar power plants, advanced nuclear reactors, petrochemical and gasification plants, waste incinerators and metal-forming and recycling industries. Contributions addressing research as well as solutions are encouraged, with a focus on coatings and surface modification.
MA1 Invited Speakers:
- Fernando Pedraza, Laboratoire d’Etudes des Materiaux en Milieux Aggressifs, Université de La Rochelle, France, “Tunable Aluminide Coatings for Surface Finish and Improved Oxidation and Hot Corrosion Behaviour of Additive Manufactured Ni-Based Superalloys”
MA2. Thermal and Environmental Barrier Coatings
This session focuses on the design, development, synthesis, and applications of thermal and environmental barrier coatings for gas and high-volume H2 turbines and other high and ultra-high-temperature applications. Topics include process understanding and novel processing methods, characterization of coating microstructure, properties (thermal, optical, mechanical, and chemical), testing methods (destructive and nondestructive), structure-property relationships, residual stresses, aging phenomena, substrate/coating system effects, and failure mechanisms, including CMAS attack, erosion, abrasion, and impact. These topics can be addressed for experimental research and/or modeling development.
MA2 Invited Speakers:
- Kuiying Chen, National Research Council, Canada, “Oxygen Permeability, Failure Analysis and Life Prediction of Environmental Barrier Coatings Under Adverse Environments”
MA3. Hard and Nanostructured Coatings
This session welcomes contributions related to the characterization, simulation, development, and application of hard coatings and surfaces, including the relationships among composition, microstructure, chemical and mechanical properties, and the influence of deposition conditions on those parameters. The session also covers multifunctional nanostructured coatings, including nanocomposite, multi-component, and layered films with designs adapting the microstructure down to the nanoscale level. The session emphasizes the design, synthesis, and characterization of novel coating concepts, their modeling, and applications, as well as the development and use of novel characterization techniques, bridging both theoretical and practical aspects of hard and smart coatings.
MA3 Invited Speakers:
- Denis Kurapov, Oerlikon Surface Solutions AG, USA
- Lina Rogström, Linköping University, Sweden
MA4. High Entropy and Other Multi-Principal-Element Materials
High entropy alloys (HEAs) and other multi-principal-element materials are multi-component systems in which high entropy of mixing, or kinetic effects, stabilize a solid solution. They exhibit unique chemical and physical properties and have therefore recently attracted a growing interest in the materials science community. This session will be a platform for thin film-related research on high entropy and multi-principal-element materials including metal alloys, carbides, nitrides, and oxides as well as other multi-component systems in which high entropy affects phase stability. Topics of interest include but are not limited to, modeling, thin film processing, and characterizations of HEAs and other multi-principal-element materials.
MA4 Invited Speakers:
- Thomas Seyller, Chemnitz University of Technology, Germany, “Growth and Properties of Epitaxial High-Entropy Alloy Thin Films”
MA5. Boron-containing Coatings
Borides and boron-containing thin film materials are emerging as the next generation of hard, wear-, oxidation-, and corrosion-resistant coatings. Furthermore, various boron-based materials exhibit unique properties obtaining high potential for functional and architectural designs. The aim of this session is to provide a platform for first-principles design, synthesis, characterization of properties and defect structure as well as applications of different types of boron-containing protective and functional thin films.
MA5 Invited Speakers:
- Jakoah Brgoch, University of Houston, USA