Photosensitive glasses and glass ceramics and composite glass materials made therefrom

Photosensitive lithium zinc aluminosilicate glasses that can be selectively irradiated and cerammed to provide patterned regions of glass and lithium-based glass ceramic, and composite glass articles made from such glasses and glass ceramics are provided. Compressive and tensile stress at the interf...

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Bibliographische Detailangaben
Hauptverfasser: Borrelli, Nicholas Francis, Seward, III, Thomas Philip, Schroeder, III, Joseph Francis, Beall, George Halsey
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:Photosensitive lithium zinc aluminosilicate glasses that can be selectively irradiated and cerammed to provide patterned regions of glass and lithium-based glass ceramic, and composite glass articles made from such glasses and glass ceramics are provided. Compressive and tensile stress at the interface of the lithium-based glass-ceramic and lithium zinc aluminosilicate glass may be used to frustrate crack propagation in such a composite glass/glass ceramic article. Methods of making composite glass articles comprising such lithium-based glass ceramics and lithium zinc aluminosilicate glasses are also provided.