COMPOSITIONAL MODIFICATION OF GLASS ARTICLES THROUGH LASER HEATING AND METHODS FOR MAKING THE SAME
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United States of America
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Jan 23, 2020
app pub date -
Sep 21, 2017
filing date -
Sep 21, 2017
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Abstract
Glass articles and methods for modifying a composition of a surface portion of the glass article are disclosed. The method includes heating the surface portion of the glass article with a laser beam to a temperature within a range of about 1100?C to about 2200?C such that the heating evaporates one or more metalloids and/or one or more alkali metals present at the surface portion, and modifies the composition of the surface portion such that the surface portion has a lower alkali metals concentration and/or a lower metalloids concentration as compared to a portion of the glass article that is not heated by the laser beam.
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