MATERIAL, SOM BESTAOR AV EN POROES MATRIS, SOM INNEHAOLLER EN ANNAN KOMPONENT I DISPERGERAD FORM, OCH FOERFARANDE FOER FRAMSTAELLNING AV DETSAMMA.

摘要

Material comprising a porous matrix consisting of at least one oxide of a metallic element containing dispersed particles of oxide of at least one second metallic element and characterised in that the particles of the said second metallic element exhibit an increase in their average size of not more than 1000 % between the average size of these particles after a heat treatment at 350 DEG C for 4 hours and that of the particles after a heat treatment at 1100 DEG C for 4 hours. Process for the manufacture of this material by coprecipitation.