Refractory foam

A porous refractory in the K2O-SiO2-B2O3 system is formed by chemical direct foaming by heating to over 600° C., resulting in adherent black or white foam. The foam can function as highly porous thermal insulation, a high or low thermal emissivity surface, as a sealant for deteriorated refractory su...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Holcombe, Cressie E, Webb, William Brent, Ritt, Patrick J
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A porous refractory in the K2O-SiO2-B2O3 system is formed by chemical direct foaming by heating to over 600° C., resulting in adherent black or white foam. The foam can function as highly porous thermal insulation, a high or low thermal emissivity surface, as a sealant for deteriorated refractory surfaces, as a filler for pockmarks/holes/gaps or as a bonding agent for parts with large gaps between them.