Functional ceramic layers based on a support layer produced with crystalline nanoparticles

US6953603B2 · kind B2 · utility

Assignee

• ItN Nanovation AG · DE

Inventors

• Ralph Nonninger · Saarburg, DE
• Olaf Binkle · Kirkel, DE

Key dates

• Filing date: Apr 19, 2002
• Grant date: Oct 11, 2005
• Expiry date: Apr 19, 2022

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/254
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The invention concerns a method for producing porous ceramic layers on metallic, ceramic, enameled or glass substrates using crystalline nanoparticles of particle sizes of between 3 nm and 100 nm via a wet-chemical process and functionalising of this porous ceramic layer through introducing a second component into the pores of the porous ceramic layer which serves as carrier layer.The porous ceramic layers can be filled with hydrophobizing, hydrophilizing, dirt-repellent and corrosion-inhibiting substances which remain in the substrate or are supplied later on demand, or with bactericidal substances, aromatics, perfumes or inhalation substances which are delivered to the room air in precise doses.