| 摘要 |
PROBLEM TO BE SOLVED: To prevent the decrease of the bonding strength of a thermally sprayed layer composed of a copper alloy or stainless steel to a ceramic, which is caused by the repeat of temp. cycle, and the easily stripping from a ceramic by slight external force. SOLUTION: The thermally sprayed coating film is formed by successively applying a metallized layer 2 composed of molybdenum-manganese, a plated layer 3 composed of Ni, a 1st thermally sprayed layer 4 composed of nickel- aluminum and a 2nd thermally sprayed layer 5 composed of the copper alloy or stainless steel on the surface of the ceramic. The ceramic 1 and the 2nd thermally sprayed layer 5 are rigidly bonded to each other and hardly stripped from each other even by being exposed to the repeat of the temp. cycle.
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