HONEYCOMB STRUCTURE

摘要

A honeycomb structure that even when regeneration treatment or the like is carried out to thereby cause the same to have application of thermal stress, is free from cracking, etc. There is provided a honeycomb structure having, bound together via an adhesive layer, multiple columnar honeycomb fired bodies each having a multiplicity of cells aligned parallelly in the longitudinal direction with a cell wall interposed therebetween, characterized in that the adhesion strength (A), measured by 3-point bending strength test, of midmost honeycomb fired bodies located in the central area of section resulting from cutting of the honeycomb structure with a cutting plane perpendicular to the longitudinal direction among the honeycomb fired bodies is in the range of 0.02 to 0.2 MPa, and that the adhesion strength (A) is lower than the adhesion strength (B), measured by 3-point bending strength test, of peripheral honeycomb fired bodies constituting portion of the periphery of the honeycomb structure among the honeycomb fired bodies.