Thermal and Chemical Expansion in Proton Ceramic Electrolytes and Compatible Electrodes

摘要: This review paper focuses on the phenomenon of thermochemical expansion two specific categories conducting ceramics: Proton Conducting Ceramics (PCC) and Mixed Ionic-Electronic Conductors (MIEC). The theory thermal ceramics is underlined from microscopic to macroscopic points view while chemical explained based crystallography defect chemistry. Modelling methods are used predict PCCs MIECs with examples: hydration barium zirconate (BaZr1−xYxO3−δ) oxidation/reduction La1−xSrxCo0.2Fe0.8O3−δ. While it unusual for a paper, we conducted experiments evaluate influence heating rate in determining coefficients experimentally. was motivated by discrepancy some values literature. conclusions that has little no effect obtained values. Models composite material presented include porosity. A set data comprising been gathered literature here divided into groups: protonic electrolytes mixed ionic-electronic conductors. Finally, mitigation mismatch problem discussed.