Process for Preparation of Silicon Carbide-based Porous Filter Including Post Treatment of Nitration Reaction

摘要

The present invention relates to a method for producing a silicon carbide-based porous filters , extruding, drying , plugging and sintering process consists of a silicon (Si) and in the carbon (C) in the method of adding a sintering aid to form a connection portion between the silicon carbide particles by carrying out the sintering , re- annealing in a nitrogen atmosphere and the remaining after completion of the sintering provides a method for producing a silicon carbide-based porous filter comprising the process of the carbon nitride . ; in the porous filter manufacturing method according to the present invention , silicon (Si) and carbon (C) by the addition of a sintering aid and the sintering can be performed at low temperature , connection between the silicon carbide particles there are remaining in the silicon region can be produced very good strength and thermal shock resistance by being converted to silicon carbide-based porous filter nitride .