| 主权项 |
1. A honeycomb structure body comprising:
a plurality of honeycomb segments having porous partition walls with which a plurality of cells extending from one end surface to the other end surface to become through channels of a fluid are formed, and an outer peripheral wall positioned at the outermost periphery and disposed to surround the partition walls, and having plugged portions arranged in one end portion of each of predetermined cells and the other end portion of each of the remaining cells; and joining material layers having a plurality of pores and joining the plurality of honeycomb segments in a state where the honeycomb segments are arranged adjacent to each other so that side surfaces of the honeycomb segments face each other, wherein a ratio of a number of pores having a value of 1.2 or less which is obtained by dividing a maximum diameter of each of the pores by a minimum diameter of the each of the pores is 60% or more of the number of all the pores of each of the joining material layers, and wherein the number of all the pores is obtained by counting a total number of pores in a 1.0 mm2 field of view, the counting operation is performed for ten non-overlapping fields of view selected at random, the total number of pores is expressed as the total number of pores in an area, and pores having an area smaller than 50 μm2 are not counted in the total number of pores. |
