Patent ID: 9228470
Filing Date: 2016-01-05
CPC Classification: F01N,H05B,Y02T

Claim Text:
1. A honeycomb structure comprising a tubular honeycomb structure section having porous partition was with which a plurality of cells extending from one and surface to the other end surface are formed to become through channels of a fluid, and an outer peripheral wall positioned in the outermost periphery; and a pair of electrode sections arranged on a side surface of the honeycomb structure section, wherein an electrical resistivity of the honeycomb structure section is from 1 to 200 Ωcm, each of the pair of electrode sections is formed into a band shape extending in a cell extending direction of the honeycomb structure section, in a cross section perpendicular to the cell extending direction, the one electrode section in the pair of electrode sections is disposed on an opposite side to the other electrode section in the pair of electrode sections via the center of the honeycomb structure section, a shape of the cells in the cross section perpendicular to the cell extending direction is a quadrangular shape or a hexagonal shape, in the cross section perpendicular to the cell extending direction and including the electrode sections, a straight line that (i) is parallel to a diagonal line connecting two facing vertexes of the one cell and passing(ii) passes through the center of the honeycomb structure section is a reference line, and each of the electrode sections is disposed at a position to intersect with the at least one reference line, and wherein a ratio of a mass of silicon to a total mass of silicon carbide particles and silicon contained in the honeycomb structure section is from 10 to 40 mass %, and a ratio of a mass of silicon contained in the electrode section to a total mass of silicon carbide articles and silicon contained in the electrode, section is from 20 to 50 mass %.