| 摘要 |
PROBLEM TO BE SOLVED: To obtain an exhaust gas purifying catalyst structure superior in adhesion between a metallic base material and a catalyst without using an expensive equipment by depositing a coating film provided with metallic particles having a specific average particle diameter on the layer having a specific thickness and formed of a sinterred product on the surface of the metallic base material. SOLUTION: At least one portion of the surface of the metallic base material 1 is covered with the coating film 2. The coating film 2 consists of the layer 3 having 0.1-3μm thickness and formed of a sintered product consisting substantially of Si, N and O, and powder 4 of at least one kind of metallic compound selected from the group consisting of the metallic oxide, metal nitride, metal carbide and two or more kinds of multiple compounds dispersed in the layer 3 of the sintered product, and having 0.3-10μm average particle diameter. Thus, the coating film 2 for imparting corrosion resistance and excellent adhesion with the catalyst to the metallic base 1 can be uniformly formed without using an expensive equipment. |
