| 摘要 |
PROBLEM TO BE SOLVED: To provide a ceramic honeycomb carrier deposited with a high-specific surface area material which is lessened in the deterioration of a low thermal impact characteristic by deposition of active alumina which improves the adhesiveness of the high-specific surface area material, such as active alumina, and has the coefficient of thermal expansion larger than the coefficient of thermal expansion of a honeycomb structure. SOLUTION: The area ratio of the holes of >=1 to <3 times the average grain size of the high-specific surface area material in the minimum diameter when the holes of the cell wall surface of the honeycomb structure of the ceramic honeycomb carrier consisting of the ceramic honeycomb structure deposited with the high-specific surface area, material are viewed in a direction perpendicular to the surface is specified 1 to 12% and the area rate of the pores of >=10 times the average grain size of the high-specific surface area material in the minimum diameter of when the holes existing in the cell wall surface are vied from the direction perpendicular to the surface is specified to <=10%. |
