Method of forming corrosion resistant coatings on metal articles

Details Method of forming corrosion resistant coatings on metal articles Method of forming corrosion resistant coatings on metal articles

1982-01-21

1983-05-10

Childs, S. L.

Coating processes

Electrical product produced

Integrated circuit, printed circuit, or circuit board

204164, 427250, 427253, 427405, 427423, B05D 100, B05D 108

Patent

active

043829767

ABSTRACT:
A metallic or ceramic layer is deposited on a component by plasma spraying. This produces a rough, still porous, coating which is poorly bonded at the interface with the substrate. Aluminium or chromium is vapor deposited under pulsating pressure to react with the substrate to form an oxidation resistant coating of Ni Al (intermetallic) or Ni Cr (solid solution) which may include ceramic particles and is aerodynamically smooth.

REFERENCES:
patent: 3594219 (1971-07-01), Maxwell et al.
patent: 3873347 (1975-03-01), Walker et al.
patent: 3977660 (1976-08-01), Nakahira
patent: 3978251 (1976-08-01), Stetson et al.
patent: 4101713 (1978-07-01), Hirsch et al.
patent: 4117179 (1978-09-01), Jackson et al.
patent: 4145481 (1979-03-01), Gupta et al.
patent: 4152223 (1979-05-01), Wallace et al.
patent: 4156042 (1979-05-01), Hayman et al.
patent: 4163071 (1979-07-01), Weatherly et al.

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