Coating mix to prevent oxidation of carbon substrates

Details Coating mix to prevent oxidation of carbon substrates Coating mix to prevent oxidation of carbon substrates

1987-12-01

1993-02-23

Group, Karl

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

501 26, 501 32, 501 79, 501100, C03C 804

Patent

active

051889897

ABSTRACT:
An oxidation-resistant carbon-containing refractory shape having on the surface thereof exposed to oxidation an oxidation-resistant glaze coating, said glaze coating consisting essentially of the reaction product of a zinc borosilicate frit and a clay; and the method of forming said coating on a refractory shape comprising applying to at least a portion of the shape an aqueous suspension of a fluxed mix consisting essentially of a zinc borosilicate and a clay, drying said coating, and firing said coated refractory shape at a temperature and for a time sufficient to cause the borosilicate and clay in said mix to react and form a substantially uniform glaze coating.

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patent: 4361654 (1982-11-01), Ohmura et al.
patent: 4540675 (1985-09-01), Morris et al.
Manson, "The Use of Bentonite for Suspending Enamels", J. of Am. Cerm. Soc., 6 pp. 790-793 (1923).
The Condensed Chemical Dictionary, Hawley, (1971) p. 417.

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