High-temperature processes in energy conversion, industrial production and transportation cause primarily anthropogenic CO2 emissions and are, therefore, subject of further improvements with respect to increased operation temperature, life time and efficiency. The symposium focuses on the close relationship between functionality of high-temperature materials and operation principles above 350 °C. The presentation of new materials and functions will be especially acknowledged. Recent results on high-temperature materials related to their preparation, characterization and application including disclosure of atomistic transport processes are requested. Contributions should include but are not limited to: