Composite of silicon carbide and carbon and method of making the

Details Composite of silicon carbide and carbon and method of making the Composite of silicon carbide and carbon and method of making the

1994-11-02

1996-07-30

Utech, Benjamin

Coating processes

Heat decomposition of applied coating or base material

Coating decomposed to form carbide or coating carbonized

4273977, 427431, 501 88, 501 90, B05D 302

Patent

active

055409504

ABSTRACT:
This invention relates to a composite of silicon carbide and carbon. This invention also relates to its manufacturing method. An obtained composite is used as heat resistant, wear resistant or chemical resistant materials. The object of this manufacturing method is to form a deep layer of silicon carbide and carbon in the surface of a carbon base by a simple process of causing a silicon containing material to penetrate into and react with the carbon block. Further object of this invention is to produce a compound in whole comprised of silicon carbide and carbon if the carbon block is 20 mm or below in thickness. To this end, according to this forming method a carbon block having a lattice constant c of 6.708 .ANG. to 6.900 .ANG. or below and a density of 1.3 g/cm.sup.3 to 1.7 g/cm.sup.3 or below is formed into a desired shape, and molten silicon containing material is caused to penetrate into and react with the carbon block thereby to obtain a surface layer composed to silicon carbide and carbon to a surface depth of 20 mm or below and having substantially the same shape as the carbon block.

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