Influence of Milling Atmosphere on the Controlled Formation of Ultrafine Dispersoids in Al-Based MMCs
Eduardo S. Caballero,
Jesús Cintas,
Francisco G. Cuevas,
Juan Manuel Montes,
Fátima Ternero
Affiliations
Eduardo S. Caballero
Metallurgy and Materials Engineering Group, Escuela Técnica Superior de Ingeniería, Universidad de Sevilla, Camino Descubrimientos s/n, Sevilla 41092, Spain
Jesús Cintas
Metallurgy and Materials Engineering Group, Escuela Técnica Superior de Ingeniería, Universidad de Sevilla, Camino Descubrimientos s/n, Sevilla 41092, Spain
Francisco G. Cuevas
Department of Chemical Engineering, Physical Chemistry and Materials Science, Escuela Técnica Superior de Ingeniería, Universidad de Huelva, La Rábida, Carretera Palos s/n, Huelva 21819, Spain
Juan Manuel Montes
Metallurgy and Materials Engineering Group, Escuela Técnica Superior de Ingeniería, Universidad de Sevilla, Camino Descubrimientos s/n, Sevilla 41092, Spain
Fátima Ternero
Metallurgy and Materials Engineering Group, Escuela Técnica Superior de Ingeniería, Universidad de Sevilla, Camino Descubrimientos s/n, Sevilla 41092, Spain
Properties of compacts made from aluminium powder, milled under different atmospheres, were evaluated. The duration of all the milling processes was 10 h, although different atmospheres were tested: vacuum, confined ammonia, and vacuum combined with a short-time ammonia gas flow (5 min). Milled powders were consolidated by cold uniaxial pressing and vacuum sintering.
