Stock material or miscellaneous articles – Composite – Including interfacial reaction product of adjacent layers
Patent
1987-05-01
1988-10-18
McCamish, Marion C.
Stock material or miscellaneous articles
Composite
Including interfacial reaction product of adjacent layers
428629, 428632, 428427, 428433, 428704, B32B 704, B32B 3106, B32B 900, C25D 1102
Patent
active
047787260
ABSTRACT:
Hydrogenated boron-silicon alloy films having unexpected properties permitting in one embodiment the bonding together of metal and ceramic substrates by coating the surfaces to be bonded with the film mating the surfaces and heat treating the mated surfaces to expell hydrogen therefrom and to react to resulting boron-silicon alloy film with the substrates to form a liquid reaction product which forms a surface bond with the substrates or is at least partially absorbed in the substrates. In another embodiment, at least one surface of an intermetallic compound formed from elements selected from groups III and V of the periodic table is sealed against structural degradation by forming on the surface a solid boron-silicon-hydrogen alloy film. In still another embodimemt, metal amd organic resin substrates are protected against attack by water vapor, dissociated oxygen and molecular oxygen by forming a solid boron-silicon-hydrogen alloy film on the substrates. The metal substrates are further protected against deterioration by the effects of the recombination of dissociated oxygen and nitrogen by converting the solid boron-silicon-hydrogen alloy film to solid boron-silicon oxide film.
REFERENCES:
patent: 3197858 (1965-08-01), Feduska et al.
patent: 3455745 (1969-07-01), Kern et al.
patent: 3854892 (1974-12-01), Burgess et al.
patent: 4522849 (1985-06-01), Lewandowski
"Grant and Hackh's Chemical Dictionary", Grant and Grant, 5th Ed., 1987, p. 183.
Lavendel Henry W.
Robinson John C.
Bryer Richard H.
Lockheed Missiles & Space Company Inc.
McCamish Marion C.
Rucker Susan S.
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