| 摘要 |
<p>A honeycomb filter 20 includes a plurality of porous partition portions 22 forming a plurality of cells 23 serving as channels of fluid and trapping layers 24 that are formed on the partition portions and configured to trap a solid component contained in the fluid. In the honeycomb filter 20, a predetermined trapping region present on the partition portions 22 satisfies that, in an inscribed-circle-diameter distribution obtained by dividing an image of the partition portions captured with an electron microscope into a material region and a plurality of pore regions and by drawing maximum inscribed circles individually inscribed in the pore regions, a median pore diameter D50 is 1 µm or more and 6 µm or less and a median pore diameter D80 is 1 µm or more and 7 µm or less, and an inscribed-circle porosity determined from the inscribed-circle-diameter distribution is 35% or more and 60% or less.</p> |
