This book provides a comprehensive survey of French contributions to the synthesis of nano-sized powders and the production of nano-structured Silicon-Based composites by liquid-phase sintering using nano-sized powders, in which interfaces play a decisive role in the evolution of properties. It focuses on a series of identical materials, addressing preparation conditions, physical and chemical analysis, and mechanical property determination of Silicon-Based nanocomposites. Edited by well-known experts, Nanostructured Silicon-Based Powders and Composites is very detailed and strongly interdisciplinary and will be valuable for a broad readership in research and education.