| 摘要 |
<p>The present invention provides new and useful nonstick coatings for use on pure aluminum, alloys of aluminum, or aluminized steel surfaces, methods of forming such nonstick coatings, and articles of cookware having such nonstick coatings applied thereto. Nonstick coatings according to the present invention include a ceramic substrate disposed on an aluminium surface and a fluorocarbon polymer top coat disposed on the ceramic substrate. The ceramic substrate is formed by applying a slip containing abrasion resistant particles and one or more glass frits to an aluminum surface and then firing the slip to form a continuous layer of vitreous enamel having surface projections defined by said abrasion resistant particles. A conventional fluorocarbon polymer top coat is applied to the ceramic substrate. The surface projections of the ceramic substrate protect the fluorocarbon polymer top coat from abrasive wear and the continuous layer of vitreous enamel protects the underlying aluminum surface from mechanical wear and chemical attack.</p> |
