Alumina-based ceramic composition for the preparation of a substrate and process for the preparation of said substrate

摘要: Composition ceramique comportant notamment en cru de l'alumine, un agent defloculant et au moins liant organique. ceramic composition comprising including raw alumina, a deflocculating and at least one organic binder. Selon l'invention, elle est constituee, extrait sec 95 99% poids d'un melange d'une premiere alumine granulometrie inferieure 2 microns, apte fritter une temperature 1600°C pour densite crue 2,3 seconde 3 1650°C 2,4 1 5% produits organiques choisi parmi les polyacrylates d'alkyles leurs copolymeres. According to the invention, it is constituted in dry extract of by weight mixture first alumina particle size less than capable sintering below 1600 ° C density flood 2.3 second 1650 for green 2.4 from products binder selected alkyl acrylates copolymers thereof.