Carbon filament coated with boron and method of making same

Details Carbon filament coated with boron and method of making same Carbon filament coated with boron and method of making same

1977-06-27

1979-02-27

Kendell, Lorraine T.

Coating processes

Coating by vapor, gas, or smoke

Carbon or carbide coating

427 45, 427 52, 427112, 427113, 427122, 428366, 428367, 428368, B32B 900, C23C 1100

Patent

active

041420080

ABSTRACT:
The invention is directed to a method of making a high strength-high modulus boron filament on a carbon substrate which is coated with pyrolytic graphite. Boron is deposited over the pyrolytic graphite. A preferred method of making such a filament citing specific pyrolytic graphite deposition temperatures is described.

REFERENCES:
patent: 3317338 (1967-05-01), Batchelor
patent: 3369920 (1968-02-01), Bourdeau et al.
patent: 3679475 (1972-07-01), Bashe et al.
patent: 3692565 (1972-09-01), Lersmacher et al.
patent: 3811940 (1974-05-01), Douglas et al.
patent: 3861953 (1975-01-01), Basche et al.

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