Patent ID: 8721978

Claim:
A catalyst carrier which is used for carrying a catalyst thereon, comprising: a catalyst carrier having a cordierite honeycomb structure including: porous partition walls arranged so that a plurality of cells forming channels for an exhaust gas are formed between two end faces, and a coating material layer coating the cordierite honeycomb structure, wherein the coating material layer consists of a zirconium alloy, a chromium alloy, a silicon nitride, or silicon carbide, the apparent specific heat of the catalyst carrier when measured at 800° C. is 1.8 times or more greater than the apparent specific heat of the catalyst carrier when measured at room temperature, wherein the apparent specific heat means a charge heat amount required for substantially increasing the temperature of a unit mass (kg) by 1 K, inclusive of the influence of endotherm or exotherm caused by change in crystalline form, partial melting, coagulation, phase transformation, vitrification, amorphous-formation, or crystallization.