| abstract |
Honeycomb segment 12 comprising a cell structure 5 having a plurality of cells 3 that serve as fluid flow paths partitioned by a porous partition wall 2, and a porous outer wall 7 disposed on the outer periphery of the cell structure 5. In the honeycomb structure 1 made of ceramics, in which a plurality of the outer walls 7 are integrated by bonding the outer walls 7 with a bonding material 8, the thermal conductivity of the base material constituting the honeycomb structure 1 is 0. .1 to 20 W / mK. Moreover, the porosity of the outer peripheral coating material constituting the outer peripheral wall of the honeycomb structure 1 is 10 to 60%. Furthermore, the thermal conductivity of the outer peripheral coating material constituting the outer peripheral wall of the honeycomb structure 1 is 0.01 to 0.5 W / mK. |