Method for producing an adherent metal deposit on carbon, and mi

Details Method for producing an adherent metal deposit on carbon, and mi Method for producing an adherent metal deposit on carbon, and mi

1990-12-12

1992-05-05

Niebling, John

Electrolysis: processes, compositions used therein, and methods

Electrolytic coating

Coating predominantly nonmetal substrate

4274197, 427304, 427162, 359900, 359883, 205116, 205222, C25D 708

Patent

active

051104229

ABSTRACT:
A surface layer of a material containing carbon and/or a carbide is produced on the outer surface of a solid carbon-based substrate (1) by selective application of material, said surface layer adhering strongly to the substrate, having a high specific surface area and having open pores (5) of a depth of at least 1 nm, and a metal material having a strong affinity for carbon, comprising at least one metal chosen from cerium, cobalt, chromium, iron, hafnium, iridium, osmium, palladium, platinum, rhodium, ruthenium, lanthanum, manganese, molybdenum, nickel, silicon, tantalum, thorium, titanium, uranium and tungsten, is deposited on said surface layer, substantially filling said pores.
The metal deposit (8) may be rectified and polished without peeling off, in order to produce a mirror of low inertia.

REFERENCES:
patent: 4444467 (1984-04-01), Shuskus et al.
patent: 4451119 (1984-05-01), Meyers et al.
patent: 4618591 (1986-10-01), Okamura et al.
patent: 4623228 (1986-11-01), Galasso et al.
patent: 4814232 (1989-03-01), Bluege et al.
patent: 4976899 (1990-12-01), Rousseau et al.
Stinton et al., Americal Ceramic Society Bulletin, vol. 61, No. 8, Aug. 1982, pp. 843-846.
Baudrand, Plating and Surface Finishing, vol. 71, No. 10, Oct. 1984, pp. 72-75.

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