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Symposium Chairs The symposium addresses coatings and other surface modifications whose primary purpose is to sustain system performance under high-temperature and harsh thermo-chemical environments. These include high-temperature corrosion (e.g., oxidation, sulfidation, carburization, water-accelerated, and CMAS-assisted degradation), catalytic and physical fouling (e.g., coking, ash fouling, slagging), and wear (e.g., abrasion, erosion, impact). Topics of interest cover the characterization and mechanistic understanding of a wide range of high-temperature degradation phenomena, as well as the materials science and surface process technologies to ameliorate them. Typical applications span gas/steam turbines, coal, geothermal, and biomass energy conversion, chemical/petrochemical processes, and high-temperature batteries and fuel cells. . . . . . . . . . . . . . . . . . . . . . . . . . . . A1. Coatings to Resist High Temperature Oxidation, Corrosion and Fouling Session Chairs
Lars-Gunnar Johansson,
Chalmers University of Technology, Sweden,
lg@chalmers.se This session spans all aspects of design, processing and performance of coatings to resist elevated temperature oxidation, corrosion and fouling. Topics include composition and processing optimization, effects of applied stress, characterization of coatings and reaction products, new processing methods, and modeling of fabrication and degradation processes (e.g., coating-substrate interdiffusion, thermal cycling, water-accelerated degradation, phase and microstructural stability). Applications include gas and steam turbomachinery, diesel engines, petrochemical and gasification plants, geothermal energy, waste incinerators, boilers and metal-forming industries. Papers addressing issues as well as solutions are encouraged, with focus on coatings and surface modification. Invited Speakers Xiao Peng, State Key Laboratory for Corrosion and Protection, CN, “Development of High-Temperature Oxidation Resistant Coatings by Electrodeposition” Krystyna Stiller, Chalmers University, SE, “TBA” Brian Gleeson, University of Pittsburgh, USA, “Fundamental Approaches to Optimizing the Hot-Corrosion Resistance of Coatings” Liang Jiang, GE Research, USA, “Modeling Oxidation & Interdiffusion of High-Temperature Environmental Coatings” Mats Halvarsson, Chalmers University, SE, “High Temperature Corrosion of MoSi2 and Mo(SiAl)2 Based Materials” . . . . . . . . . . . . . . . . . . . . . . . . . . . A2. Thermal and Environmental Barrier Coatings Session Chairs
Richard
Wellman,
Cranfield University, UK,
R.Wellman@cranfield.ac.uk This session focuses on the development, design, synthesis and applications of thermal and environmental barrier coatings for gas turbines, diesel engines, and other high-temperature applications. Topics include process understanding and novel processing methods, characterization of coating microstructures, thermal/optical/mechanical/chemical properties, destructive/nondestructive testing methods, structure-property relationships, residual stresses, ageing phenomena, substrate/coating system effects, modeling of fabrication and degradation processes, and failure mechanisms, including corrosion, erosion, abrasion, and impact. John Hutchinson, Harvard University, USA, “Mechanics of TBC Delamination” Vincent Maurel, Mines ParisTech, FR, "Influence of the Mechanical Behavior of the Underlayer in Spallation” Elizabeth Opila, University of Virginia, USA, “Stability of Silicates for Environmental Barrier Coatings” Kang Lee, Rolls-Royce Corporation, USA, “An Overview of Environmental Barrier Coatings” Albert Feuerstein, Praxair Surface Technologies, USA, “Process and Equipment for Advanced Thermal Barrier Coating Systems” . . . . . . . . . . . . . . . . . . . . . . . . . . . A3/F8. Coatings for Fuel Cells & Batteries Session Chairs
Gayatri
Dadheech,
General Motors, USA,
gayatri.dadheech@gm.com Interest in fuel cells has grown at a rapid pace, owing to the promise of low environmental emissions and high energy conversion efficiencies. Despite considerable technical progress, significant challenges remain to be overcome to fully commercialize fuel cell based power systems. Advances in coatings and coating processes play a major role in overcoming some of the key materials-related challenges. For solid oxide fuel cell (SOFC), these include: reducing the oxidation kinetics and improving the electrical performance of interconnects; improving the strength and chemical stability of seal-interconnect and seal-electrolyte interfaces; and fabrication of cell components. For PEM fuel cell stacks, coatings may improve steel interconnects by improving corrosion resistance and stabilizing electrical conductivity. The rapid development of biological fuel cells using microorganisms and enzymes as biocatalysts provides new approaches for generating electricity from waste, biomass and even human body fluids, for applications from wastewater treatment to health care devices. Coatings in biological fuel cells may immobilize and improve the stability and activity of biocatalysts, as well as improve the biocompatibility of electrode substrates.
High-performance rechargeable batteries have attracted
recent attention with the emergence of new markets in
high performance electric storage systems, including
electric grid stabilization, back-up power and the
hybridization of drive trains. Invited Speakers Toshio Maruyama, Tokyo Institute of Technology, JP, “Oxidation of SOFC Interconnects” Mark Verbrugge, General Motors R&D, USA, "Materials Developments for Vehicle Electrification" . . . . . . . . . . . . . . . . . . . . . . . . . . .
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