| abstract |
The invention relates to a filter of which the filtering portion is made from an inorganic material comprising grains of SiC bonded by a vitroceramic phase, to form a porous structure of which the apparent porosity is between 20 and 70%, said vitroceramic bonding phase comprising at least the following components, in molar percentage of the total oxides present in said phase:n SiO 2 : 30% to 80% Al 2 O 3 : 5% to 45% MO: 10% to 45%, where MO is an oxide of a divalent cation or the sum of the oxides of the divalent cations present in said vitroceramic phase, M preferably being selected from Ca, Ba, Mg or Sr, said vitroceramic phase having a volume percentage of residual vitreous phase lower than 20%. |