Oven rack having integral lubricious, dry porcelain surface

A lubricious glass-coated metal cooking article capable of withstanding repeated heating and cooling between room temperature and at least 500° F. without chipping or cracking the glass coating, wherein the glass coating includes about 0.1 to about 20% by weight of a homogeneously distributed dry re...

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Bibliographische Detailangaben
Hauptverfasser: QU JUN, MACKIEWICZ-LUDTKA GAIL, SIKKA VINOD K, AMBROSE JEFFREY A
Format: Patent
Sprache:eng
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Zusammenfassung:A lubricious glass-coated metal cooking article capable of withstanding repeated heating and cooling between room temperature and at least 500° F. without chipping or cracking the glass coating, wherein the glass coating includes about 0.1 to about 20% by weight of a homogeneously distributed dry refractory lubricant material having a particle size less than about 200 μm. The lubricant material is selected from the group consisting of carbon; graphite; boron nitride; cubic boron nitride; molybdenum (IV) sulfide; molybdenum sulfide; molybdenum (IV) selenide; molybdenum selenide, tungsten (IV) sulfide; tungsten disulfide; tungsten sulfide; silicon nitride (Si3N4); TiN; TiC; TiCN; TiO2; TiAlN; CrN; SiC; diamond-like carbon; tungsten carbide (WC); zirconium oxide (ZrO2); zirconium oxide and 0.1 to 40 weight % aluminum oxide; alumina-zirconia; antimony; antimony oxide; antimony trioxide; and mixtures thereof.