Honeycomb structure

Abstract

A honeycomb structure constituted by cell partition walls (ribs) which form combined cells being composed of a plurality of cells adjacent to each other, and a honeycomb outer wall surrounding and holding outermost cells located at the circumference of combined cells, characterized in that cell partition walls and the honeycomb outer wall are formed by a bonded texture containing silicon carbide (SiC) as an aggregate and cordierite as a binder, and that the proportion (volume %) of silidon carbide (SiC) forming the bonded texture to the total of cordierite and silicon carbide (SiC) is 40 to 90%. This honeycomb structure can exceed required levels, in all of thermal conductivity, chemical durability, low thermal expansion and mechanical strength, producible at a low cost, and suitably used in a filter for purification of automobile exhaust gas, a catalyst carrier, etc.

Dependencies are inferred from the claim text.