| abstract |
(I) Relational expression 10.2474 / [(d 50 ) 2 (pore fraction)] + 0.0366183 (d 90 ) −0.00040119 (d 90 ) 2 +0.468815 (l / pore fraction) 2 +0.0297715 (d 50 ) +1.61639 (d 50 −d 10 ) / d 50 ≦ 3.65, and (ii) CTE of 25 × 10 −7 / ° C. or less (25 ° C. A cordierite ceramic body having (~ 800 ° C), (a) a fine talc having a median particle size of less than 10 micrometers and a BET specific surface area of greater than 5 m 2 / g, as measured by laser diffraction, and (B) A cordierite ceramic body manufactured from a molding mixture having a cordierite-forming raw material including a pore-forming body is disclosed. Cordierite ceramic bodies are suitable for the production of cellular wall flow diesel particulate filters with low pressure drop, high filtration efficiency and improved strength. |