Production of reaction-bonded silicon carbide bodies

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

1983-04-19

1984-10-16

Lusignan, Michael R.

Coating processes

Heat decomposition of applied coating or base material

Coating decomposed to form carbide or coating carbonized

264 293, 264 294, 264 295, 264 56, 423346, 427402, 4274301, B05D 302

Patent

active

044774931

ABSTRACT:
Reaction-bonded silicon carbide artefacts are produced by siliconizing a green body formed from a coherent mixture of silicon carbide and carbon powders. The surface of the green body is coated with a paste comprising silicon powder suspended in a carbonizable viscous medium which, on heating of the coating, is converted to an open cellular carbon structure and then, on siliconizing the green body, to a silicon carbide skeleton through which molten silicon is drawn.

REFERENCES:
patent: 3079273 (1963-02-01), Johnson
patent: 3882210 (1975-05-01), Crossley

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