Carbon film coated refractory fiber cloth

Details Carbon film coated refractory fiber cloth Carbon film coated refractory fiber cloth

1987-03-19

1989-04-25

Goldberg, E. A.

Electric heating

Heating devices

With heating unit structure

427249, H05B 334

Patent

active

048250490

ABSTRACT:
A flexible electrically conducting cloth comprising a plurality of intermingled or interwoven fibers of a refractory material having a sheet resistance above 1000 ohms per square. A conducting coating having at least about 70 atomic percent carbon encapsulates a majority of the fibers. The coating is applied in sufficient quantity to render the cloth electrically conducting with a sheet resistance of about 0.1 to about 1000 ohms per square, the coating having been formed by chemical vapor deposition at 800.degree. C. to 1200.degree. C. A flexible electrically conducting cloth having a length and a breadth is also provided comprising a plurality of intermingled or interwoven fibers of a refractory material having a sheet resistance above 1000 ohms per square. A conductive coating including at least about 70 atomic percent carbon encapsulates a majority of the coating. The coating is in sufficient quantity to render the cloth conducting with a sheet resistance between 0.1 and 1000 ohms per square. The cloth has a resistance across its breadth uniform to within about .+-.10% and a controllable resistance along its length.

REFERENCES:
patent: 3349359 (1967-10-01), Morey
patent: 4477707 (1984-10-01), Kim

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