Tunable glass compositions having improved mechanical durability
AssigneeCorning Incorporated
InventorsXiaoju Guo, Peter Joseph Lezzi, Jian Luo
Life of this patent
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Abstract
A glass composition includes: greater than or equal to 24 mol % and less than or equal to 60 mol % SiO2; greater than or equal to 23 mol % and less than or equal to 35 mol % Al2O3; greater than or equal to 3.5 mol % and less than or equal to 35 mol % B2O3; greater than 0 mol % and less than or equal to 20 mol % Li2O; greater than or equal to 0 mol % and less than or equal to 10 mol % Na2O; and greater than or equal to 0 mol % and less than or equal to 3 mol % K2O. The sum of Li2O, Na2O, and K2O (i.e., R2O) in the glass composition may be greater than or equal to 12 mol % and less than or equal to 20 mol %.
Claims20
A glass composition comprising:
- greater than or equal to 24 mol % and less than or equal to 60 mol % SiO2;
- greater than or equal to 23 mol % and less than or equal to 35 mol % Al2O3;
- greater than or equal to 3.5 mol % and less than or equal to 35 mol % B2O3;
- greater than 0 mol % and less than or equal to 20 mol % Li2O;
- greater than or equal to 0 mol % and less than or equal to 10 mol % Na2O;
- and
- greater than or equal to 0 mol % and less than or equal to 3 mol % K2O, wherein R2O is greater than or equal to 12 mol % and less than or equal to 20 mol %, R2O being the sum of Li2O, Na2O, and K2O.
Dependencies are inferred from the claim text.