PURPOSE: To join firmly both joint surfaces by inter-surface good reactivity and the relaxation of differential thermal expansion, by interposing a composite material of both of them or plural composite materials whose mixing ratio has been changed and executing a solid phase junction, between the joint surfaces of ceramics or a fiber reinforced metallic material and a metallic material.
CONSTITUTION: Between joint surfaces of ceramics 2 or a fiber reinforced metallic material and a metallic material 1, a composite material of both of them, or for instance, a composite material 3 of 20% ceramics and 80% metallic material, and a composite material 4 of 80% ceramics and 20% metallic material are interposed, heated and pressed, and brought to a solid phase junction. The reactivity between the surfaces becomes good, and a difference of a coefficient of thermal expansion is relaxed stepwise, therefore, an inter-surface residual stress is reduced, generation of a crack is prevented, and both the joint surfaces are brought to a solid phase junction firmly.
KOJIMA TOSHIFUMI
UENO YASUHIRO
WATANABE ITARU
| JPS6027664A | 1985-02-12 |
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