| 摘要 |
<p>A honeycomb structure 10 includes: multiple honeycomb units 11 havingmultiple throughholes 12; and a seal layer 14 that joins honeycomb units 11 with each other via respective closed outer faces 13 of the honeycomb units 11 where the through holes are not open. The honeycomb unit 11 includes at least inorganic particles, inorganic fibers and/or whiskers. A cross section area of a honeycombed face of the honeycomb unit perpendicular to the through holes 12 is 5 to 50 cm 2 . The flatness of an entire end face as the honeycombed faces of the honeycomb units 11 joined by the seal layer 14 is 2.5 mm or less. The level difference between the end faces of the honeycomb units 11 is 2.0 mm or less. A ratio of the total sum of the cross section areas of the honeycombed faces of the honeycomb units 11 perpendicular to the through holes 12 to the cross section area of the honeycombed face of the honeycomb structure 10 perpendicular to the through hole 12 is 85% or more. According to this honeycomb structure 10, heat stress and vibration applied to respective honeycomb units 11 can be buffered by the seal layer 14, and damage in the end face can be suppressed.</p> |
