Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1994-10-05
1996-07-09
Simmons, David A.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
1562722, 1562733, 156281, 65 597, 21912164, 2282622, 228903, B32B 3128
Patent
active
055341039
ABSTRACT:
Proposed is a method for bonding of a ceramic body and a metallic body at a relatively low temperature not to cause substantial deformation or material degradation of the ceramic and metallic materials. The surface of the ceramic body is first irradiated with laser beams in vacuum so that the inorganic non-volatile constituent of the ceramic material, e.g. silicon when the ceramic is silicon nitride, is isolated on the surface of the ceramic body forming a layer. Thereafter, the metallic body is brought into contact with and pressed in vacuum against the thus laser beam-irradiated area of the ceramic body under an adequate pressing force and at an elevated but relatively low temperature which is, for example, not higher than 0.5Tm .degree.C., Tm .degree.C. being the melting point of the metallic material, so that the ceramic and metallic bodies are firmly bonded together. It is preferable that the surface of the metallic body is subjected beforehand to an activation or cleaning treatment, for example, by the bombardment with ion beams of an inert gas, e.g., argon.
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Katsumura Munehide
Matsuda Jun
Ooie Toshihiko
Utsumi Akihiro
Yano Tetsuo
Helmer Steven J.
Japan as represented by Director General of Agency of Industrial
Simmons David A.
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