Aluminum phosphate compounds, coatings, related composites and applications
AssigneeApplied Thin Films, Inc.
InventorsSankar Sambasivan, Krishnaswamy K. Rangan
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Abstract
Composites comprising an aluminum phosphate-based coating component and methods for sealing porous substrate surfaces.
Claims23
A device comprising an electronic or optoelectronic component and a metal or metal alloy foil, wherein the metal is stainless steel, titanium, magnesium, nickel-based alloys or a superalloy, or a plastic substrate component with a coating thereon, wherein the coating comprises an amorphous aluminum phosphate compound containing Al—O—Al bonds and having an aluminum to phosphorous atomic ratio from about 0.5:1 to about 25:1 and forming a diffusion or a gas permeation barrier coating onto the substrate and is electrically insulating, and wherein the aluminum phosphate compound coating is deposited as a film on the substrate from a solution of phosphate ester and an aluminum salt and heated to a temperature and for a time sufficient to cure the coating while the substrate is heated to a lower temperature.
A device comprising a metal or metal alloy foil, wherein the metal is stainless steel, titanium, magnesium, nickel-based alloys or a superalloy, or a plastic substrate with a dielectric coating thereon, wherein the coating comprises an amorphous aluminum phosphate compound containing Al—O—Al bonds and having an aluminum to phosphorous atomic ratio from about 0.5:1 to about 25:1 and forming a diffusion or a gas permeation barrier coating onto the substrate and is electrically insulating, and wherein the aluminum phosphate compound coating is deposited as a film on the substrate from a solution of phosphate ester and an aluminum salt and heated to a temperature and for a time sufficient to cure the coating while the substrate is heated to a lower temperature, wherein the device is useful as an electronic or optoelectronic component.
Dependencies are inferred from the claim text.