This book proposes the production methods of thermoelectric strontium titanate which enable efficient use of energy resources. Key technology used in whole this book is combustion synthesis and also, spark plasma sintering was applied in Chapters 2 and 3. In Chapter 1, a introduction is given. In Chapters 2 and 3, the effects of operating conditions of spark plasma sintering were investigated. Spark plasma sintering successfully led the improvement of merit of lanthanum-doped strontium titanate since grain growth were effectively suppressed and oxygen defects can be introduced at the same...