Alloys or metallic compositions – Tantalum base
Patent
1987-06-04
1988-11-22
Roy, Upendra
Alloys or metallic compositions
Tantalum base
148403, 420430, B32B 1500
Patent
active
047864680
ABSTRACT:
New alloys highly resistant to corrosion by concentrated acid and having excellent adhering properties when coated on stainless steel are formed of 60 to 90 atomic percent tantalum or tungsten, with the remainder being iron, chromium and nickel in the proportions found in stainless steel, e.g., 304L stainless steel. They may be formed in situ on the surface to be coated by sputter deposition, using a sputter target which is part tungsten or tantalum, and part stainless steel.
REFERENCES:
patent: 3184304 (1965-05-01), Andes
patent: 3669656 (1972-06-01), Murphy et al.
patent: 3859055 (1975-01-01), Larsen
patent: 3904383 (1975-09-01), Murphy et al.
patent: 3988118 (1976-10-01), Grierson et al.
Merz Martin D.
Wang Rong
Battelle (Memorial Institute)
Hauth Joseph J.
Roy Upendra
Sharp Robert Keith
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