Fine laminar barrier protective layer

US8435650B2 · kind B2 · utility

Assignee

• Schott AG · DE

Inventors

• Andree Mehrtens · Eschershausen, DE
• Thomas Kupper · Zürich, CH
• Margareta Hamel · Bovenden, DE
• Christoph Moelle · Bad Gandersheim, DE

Key dates

• Filing date: Dec 19, 2005
• Grant date: May 7, 2013
• Expiry date: Dec 8, 2028

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/24744
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

In order to provide a thermostable and highly effective barrier coating on a substrate, and to protect the substrate against the effect of harmful gas components even at high temperatures, the invention provides a coated substrate comprising a barrier coating having a multiplicity of consecutive individual layers respectively of a kind differing from or similar to a neighboring individual layer, the individual layers exhibiting a layer thickness of respectively at most 50 nanometers.