Glass articles having films with moderate adhesion and retained strength

US9725357B2 · kind B2 · utility

Assignee

• CORNING INCORPORATED · US

Inventors

• Kaveh Adib · Corning, US
• Robert Alan Bellman · Ithaca, US
• Shandon Dee Hart · Elmira, US
• Guangli Hu · Horseheads, US
• Robert George Manley · Vestal, US
• Prantik Mazumder · Ithaca, US
• Chandan Kumar Saha · Franklin, US

Key dates

• Filing date: Apr 9, 2014
• Grant date: Aug 8, 2017
• Expiry date: Nov 2, 2035

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/24983
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

One or more aspects of the disclosure pertain to an article including a film disposed on a glass substrate, which may be strengthened, where the interface between the film and the glass substrate is modified, such that the article has an improved average flexural strength, and the film retains key functional properties for its application. Some key functional properties of the film include optical, electrical and/or mechanical properties. In one or more embodiments, the interface exhibits an effective adhesion energy of about less than about 4 J/m2. In some embodiments, the interface is modified by the inclusion of a crack mitigating layer containing an inorganic material between the glass substrate and the film.