OUTER PERIPHERY-COATING MATERIAL, OUTER PERIPHERY-COATED HONEYCOMB STRUCTURE AND PROCESS FOR PRODUCTION THEREOF

摘要

The outer-peripheral coating material of the present invention contains a filler containing a laser-coloring powder containing at least one member selected from the group consisting of a metal and a metal compound each developing a color which differs from the original color when irradiated with a laser beam, and a ceramic powder composed of a ceramic other than the material which constitutes the laser-coloring powder, and a dispersing medium, wherein the filler contains the laser-coloring powder in an amount of 20 to 400 parts by mass relative to 100 parts by mass of the ceramic powder.