Stock material or miscellaneous articles – All metal or with adjacent metals – Foil or filament smaller than 6 mils
Patent
1986-03-18
1987-07-21
Silverberg, Sam
Stock material or miscellaneous articles
All metal or with adjacent metals
Foil or filament smaller than 6 mils
428632, 428651, 428660, 148 63, 20419215, 20419223, B32B 1504, B32B 1500, B32B 1501
Patent
active
046818189
ABSTRACT:
A method is disclosed for coating a titanium panel or foil with aluminum and amorphous silicon to provide an oxygen barrier abrogating oxidation of the substrate metal. The process is accomplished with inexpensive procedures common in materials research laboratories, i.e., electron beam deposition and sputtering. The procedures are conducive to treating foil gage titanium and result in submicron layers which virtually add no weight to the titanium. The ultra-thin coatings diffusion bond with the substrate titanium without costly heating steps and the coatings blend with the substrate titanium until separate mechanical properties are subsumed by those of the substrate without cracking or spallation. This method appreciably increases the ability of titanium to mechanically perform in high thermal environments such as those witnessed on structures of space vehicles during re-entry.
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Clark Ronald K.
Unnam Jalaiah
Helfrich George F.
Manning John R.
Marchant Robert D.
Owens Terry J.
Silverberg Sam
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