Patent ID: 8053054
Filing Date: 2011-11-08
Classification: B01D,C04B,F01N,Y02T,Y10T

Abstract:
1. A honeycomb structure comprising a honeycomb segment bonded body in which a number of honeycomb segments are integrated on each bonding plane via bonding material layers, and having a structure in which a number of cells forming fluid flow channels are disposed in parallel in the direction of the center axis thereof, the honeycomb structure being constructed so that the porosity of an outer portion of the bonding material layers (an area from the interface with the honeycomb segment bonding plane to a point apart from that interface by a distance equivalent to 20% of the entire layer thickness) is smaller than the porosity of the central portion located inward of the outer portion, and so that the bonding material layers have a compression Young's modulus along the Z-axis of 5 to 100 MPa, and the bonding material comprises inorganic fibers having an average length in the direction of the inorganic fibers' major axis of 200 to 600 μm.