| abstract |
A honeycomb structure capable of suppressing breakage in a high-temperature environment is provided. A honeycomb structure 100 includes a plurality of parallel flow paths 105 partitioned by a porous partition wall 120, and a cross section of the flow path 105 perpendicular to the axial direction of the flow path 105 has an arc-shaped corner. a polygonal shape having a part, flow plurality of flow paths 105, which are arranged a flow path 105a which is arranged in the center P 11 of the honeycomb structure 100, the outer periphery of the honeycomb structure 100 than the channel 105a And the radius of curvature of the corner of the channel 105b is larger than the radius of curvature of the corner of the channel 105a. [Selection] Figure 1 |