Production of reaction-bonded silicon carbide bodies

Details Production of reaction-bonded silicon carbide bodies Production of reaction-bonded silicon carbide bodies

1984-08-29

1986-07-01

Cooper, Jack

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

From cellulosic material

264 295, 264 60, 264 62, 423345, 501 88, 501 90, C01B 3136

Patent

active

045979235

ABSTRACT:
The production of a reaction-bonded silicon carbide artefact by siliconizing a green body comprising a coherent mixture of carbon and silicon carbide particles includes the step of forming a layer of carbon of open cellular structure on the green body by carbonization of a sleeve or tube on the green body by carbonization of a sleeve or tube of carbonaceous material in contact with the body. This material may be impregnated with particulate silicon suspended in water or a paste. The material may be a quilted or woven fabric of fibrous material or it may be in the form of paper. The material is in a flexible strip or sheet form to enable it to be wrapped around the green body or a former about which the green body is to be formed.

REFERENCES:
patent: 3079273 (1963-02-01), Johnson
patent: 3882210 (1975-05-01), Crossley et al.
patent: 4067955 (1978-01-01), Noakes et al.
patent: 4154787 (1979-05-01), Brown
patent: 4477493 (1984-10-01), Parkinson et al.

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