The structures inside advanced coal-fired energy systems will be exposed to much higher temperatures and much more corrosive environments than today's steam-cycle systems. These conditions require the use of advanced structural materials such as high-temperature alloys, intermetallics, and ceramics in the construction of these systems.

The EERC is working to develop innovative methods and technologies that promote the use of advanced structural materials. Current efforts include corrosion-resistant joining of silicon-based ceramics and laboratory-, bench-, and pilot-scale testing of coal gas and slag corrosion of alloys, ceramics, and brick refractories. The EERC will seek to transfer developed technologies to the materials industry via licensing agreements through the EERC Foundation.

Advanced Materials Science Activities

• Development of high-temperature, corrosion-resistant, high-conductivity refractories
• Silicon carbide and silicon nitride joining
• SiAlON-Y coatings to prevent alkali corrosion of ceramics
• Electron beam coating for protection of palladium membranes
• Dynamic slag corrosion of monolithic and fusion cast refractories
• Prediction of ash bridging in hot-gas filters
• Ash and vapor corrosion of advanced alloys
• Physical and chemical analyses