Method and apparatus for carbon coating and boron-doped carbon c

Details Method and apparatus for carbon coating and boron-doped carbon c Method and apparatus for carbon coating and boron-doped carbon c

1990-03-05

1992-08-25

Kunemund, Robert

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

156601, 156611, 156612, 156613, 156614, 156DIG73, 156DIG86, 156DIG88, C30B 2500

Patent

active

051415950

ABSTRACT:
The disclosed invention employs a gravity assisted open system for coating of refractory substrates with a highly uniform layer of graphite or other material. Pyrolytic dissociation of precursor gases in an inert atmosphere flowing downwardly, countercurrent to the upward direction of transport of the substrate material, promotes condensation of the coating material on the moving substrate in a homogenous coating. The open configuration of the system allows continuous feed and takeup of substrate material to reduce startup and shutdown transient conditions affecting uniformity of the coating.

REFERENCES:
patent: 3328199 (1967-06-01), Sirth
patent: 3386866 (1968-06-01), Ebert et al.
patent: 3520740 (1970-07-01), Addamiano
patent: 3635757 (1972-01-01), Harris
patent: 3930908 (1976-01-01), Jolly
patent: 4190470 (1980-02-01), Walline
patent: 4341588 (1982-07-01), Sterling
patent: 4722911 (1988-02-01), Frijlink

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