| 摘要 |
A honeycomb structure 20 is provided with multiple honeycomb units 10 having multiple through holes 12 arranged in parallel along the longitudinal direction, and a seal layer 26 for joining the units 10 via the outer faces 13 on which the through holes 12 are not opened. The honeycomb structure satisfies the expression 2<=A/B<=0.0002xC+5 (about 28000<=C), WHERE A (G/CM<SUP>3</SUP>) represents a product of the apparent density of the honeycomb unit 10 and volume ratio of the honeycomb unit 10 to the whole honeycomb structure, B (g/cm<SUP>3</SUP>)represents a product of the apparent density of the seal layer 26 and volume ratio of the seal layer 26 to the whole honeycomb structure, and C (m<SUP>2</SUP>/L) represents a specific surface area per unit volume of the honeycomb structure 20. |
