LAMINATED GLASS ARTICLE WITH CERAMIC PHASE AND METHOD OF MAKING THE ARTICLE

摘要

A method for forming a laminated glass article with a ceramic phase, such as a beta-spodumene phase, located at least at the junctures between a glass core and directly adjacent glass clad layers, and in some embodiments located throughout the laminated glass article. In some embodiments, a method is disclosed herein for forming a beta-spodumene glass-ceramic sheet, or a laminated glass article having a ceramic phase, or a laminated glass article having a beta-spodumene glass-ceramic, is disclosed.

主权项

1. A method comprising:
forming, via fusion draw, a laminate structure comprising a core layer comprised of a sodium rich (lithium deficient) glass composition sandwiched between first and second clad layers comprised of a lithium-rich glass composition; and heat treating the laminate structure to diffuse lithium ions from at least one of the first or second clad layers to the core layer, and to diffuse sodium ions from the core layer to at least one of the first or second clad layers.