With contributions from international scientists active in SOFC research, this volume provides state-of-the-art information for the selection and development of materials for improved SOFC performance. It describes current materials, future advances in materials, and significant technical problems that remain unresolved. The book covers electrolytes, anodes, and cathodes as well as interconnects and sealants, which are two supporting components of the fuel cell stack. It also addresses the various issues involved in materials processing for SOFC applications, such as the microstructure of the component layers and the processing methods used to fabricate the microstructure.