| 摘要 |
PURPOSE:To form strong joint part in joining two kinds of metals that form a brittle intermetallic compound, by interposing a thin ceramic layer and a metallic layer of the same kind as the other metal in the joining face of one metal. CONSTITUTION:When joining an Al base member 1 and an Fe base member 2, an Al2O3 base ceramic layer 3 having 10mu thickness is thermally sprayed by plasma on the joining face of the Fe base member 2. Further, a metal of the same quality as the Al base member 1 or metallic layer 4 which consists essentially of Al and does not form an intermetallic compound with the Al base member 1 is vapor-deposited between said face and the Al base member 1. Two metallic members 1 and 2 are joined through the ceramic layer 3 and the metallic layer 4 by diffusion welding or brazing. When used at high temperatures, this joined members always maintains high joining strength since the metallic members 1 and 2 do not form a brittle intermetallic compound. |
