| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a honeycomb structure including both a sufficiently-high open porosity and sufficiently-high mechanical strength. <P>SOLUTION: In this honeycomb structure 1 having porus partitions 3 mainly composed of cordierite, and a plurality of cells 5 opened from one end 7a to the other end 7b and formed in the divided state by partitions 3, the open porosity of the partition 3 is 58-70%, and the average pore size of the partition 3 is ≥15 μm. Concerning a cross-sectional image of the partition 3, assuming that a contour length of a cross-sectional image of skeletons scattered in the island shape is L, and that a circumferential length of a circle circumscribed about the cross-sectional image of the skeleton is C, the mean value of the contour length L of the cross-sectional image of each skeleton is in the range of 140-300 μm, and the mean value of L/C is in the range of 2.5-3.0. <P>COPYRIGHT: (C)2013,JPO&INPIT |
