Glass or glass-ceramic article coated with hard material and method for production thereof

US8460804B2 · kind B2 · utility

Assignee

• Schott AG · DE

Inventors

• Christian Henn · Bad Kreuznach, DE
• Falk Gabel · Schlangenbad, DE

Key dates

• Filing date: Jul 1, 2008
• Grant date: Jun 11, 2013
• Expiry date: Jan 16, 2030

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/265
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The object of the invention is to create a hard-material coating for glass ceramics and glasses, a coating which is particularly temperature-resistant and protects the substrate from mechanically caused damage as well as chemical attack. For this purpose, a silicon nitride coating is proposed, which has a structure-free morphology in the volume.