Roberto Martínez Sánchez is a researcher at the Departamento Metalurgia e Integridad Estructural, Centro de Investigación en Materiales Avanzados, México. He is a specialist in material synthesis through mechanical alloying, mechanical grinding, powder metallurgy, and conventional metallurgy. His areas of interest include the synthesis and mechanical–microstructural characterization of metal matrix composite materials reinforced with nanostructured materials, aluminum alloys, and multicomponent systems, with a focus on the relationship between microstructure and physical properties. He has been a researcher at CIMAV since December 1997. He is a member of the National Research System (Level II).