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US 12,583,783 B2Granted
Lithium containing glasses
AssigneeCorning Incorporated
InventorsTimothy Michael Gross, Xiaoju Guo, Charlene Marie Smith
Life of this patent
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Abstract
A glass article including, on an oxide basis, from 60 mol % to 74 mol % SiO2, from 7 mol % to 18 mol % Al2O3, less than or equal to 16 mol % B2O3, from 0 mol % to 6 mol % Na2O, greater than or equal to 0.5 mol % SrO, and greater than or equal to 0.5 mol % of divalent cation oxides. The glass article has a molar ratio of Al2O3:(R2O+RO) greater than or equal to 0.9, where R2O is a sum of alkali metal oxides in mol % and RO is a sum of divalent cation oxides in mol %.
Claims18
A glass article comprising:
- from greater than or equal to 60 mol % to less than or equal to 70 mol % SiO2;
- from greater than or equal to 7 mol % to less than or equal to 18 mol % Al2O3;
- less than or equal to 10 mol % B2O3;
- from greater than or equal to 0 mol % to less than or equal to 6 mol % Na2O;
- from greater than or equal to 0.5 mol % to less than or equal to 2 mol % SrO;
- and
- from greater than or equal to 0.5 mol % to less than or equal to 6.5 mol % of a sum of divalent cation oxides,
- wherein a molar ratio of Al2O3:(R2O+RO) is greater than or equal to 0.9, R2O is a total amount of alkali metal oxides in the glass article, and RO is a total amount of alkaline earth oxides.
5 more elements
A glass article comprising:
- from greater than or equal to 60 mol % to less than or equal to 70 mol % SiO2;
- from greater than or equal to 7 mol % to less than or equal to 18 mol % Al2O3;
- less than or equal to 10 mol % B2O3;
- from greater than or equal to 5 mol % to less than or equal to 11 mol % Li2O;
- from greater than or equal to 0 mol % to less than or equal to 6 mol % Na2O;
- from greater than or equal to 0.5 mol % to less than or equal to 2 mol % SrO;
- and
- from greater than or equal to 0.5 mol % to less than or equal to 6.5 mol % of a sum of divalent cation oxides.
5 more elements
Dependencies are inferred from the claim text.