| 摘要 |
A ceramics structure body having chemical composition of 42 to 56 wt% of SiO2. 30 to 45 wt% of Al2O3 and 12 to 16 wt% of MgO, crystalline phase mainly composed of cordierite, a porosity of 55 to 65 %, an average pore size of 15 to 30 mu m; and the total area of pores exposed on surfaces of partition walls constituting the honeycomb ceramics structure body being 35 % or more of the total area of partition wall surfaces. Fifteen to 25 wt% of graphite and 5 to 15 wt% of a synthetic resin are added as a pore forming agent to a cordierite-forming raw material; the resultant is kneaded and molded into a honeycomb shape; and the resultant is dried and fired to produce above-mentioned honeycomb ceramics structure body. According to this honeycomb ceramics structure body, a low pressure loss and a high collection efficiency can be attained. <IMAGE> |
