Patent ID: 7951324

Claim:
A method for manufacturing a honeycomb structure comprising a honeycomb fired body, comprising: preparing a material composition containing at least a silicon carbide powder, a binder and an additive; manufacturing a pillar-shaped honeycomb molded body in which a number of cells are placed in parallel with one another in a longitudinal direction with a cell wall therebetween by molding said material composition; manufacturing a honeycomb degreased body by carrying out a degreasing treatment on said honeycomb molded body wherein an amount of carbon remains in the honeycomb degreased body; and manufacturing a honeycomb fired body by carrying out a firing treatment on said honeycomb degreased body wherein the amount of carbon is removed from the honeycomb degreased body so that silicon carbide particles of the silicon carbide powder are combined with one another, wherein said additive is a powder having an average particle diameter (D50) of at least about 0.05 μm and at most about 0.3 μm, wherein said additive is silica, wherein a purity of said silicon carbide powder is at least about 96.0% by weight and at most about 99.5% by weight, and wherein the compounding amount of said additive is at least about 1% by weight and at most about 5% by weight of the total amount of said silicon carbide powder.