| abstract |
A honeycomb structure, comprising a plurality of honeycomb segments partitioned by partition walls and having a plurality of flow holes passed therethrough in one axial direction and joining layers positioned between the adjacent honeycomb segments and joining the plurality of honeycomb segments. The joining layers are formed of a joining material including oxide fibers meeting the requirement of the following relational expression. 0.5 < L x (W/D)/100 < 8 Where, L (μm) is the averaged fiber length of the oxide fibers D (g/cm3) is the specific gravity of the oxide fibers W (w.%) is the mass percentage content of the oxygen fibers to all joining material |