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US 12,565,444 B2Granted
Glass-ceramic compositions and methods of making thereof
AssigneeCorning Incorporated
InventorsErin Coon, Qiang Fu, Alana Marie Whittier
Life of this patent
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Abstract
A silicate-based composition includes: 40-80 mol % SiO2, >0-25 mol % MO, 15-40 mol % R2O, >0-10 mol % Al2O3, >0-10 mol % P2O5, and >0-5 mol % ZrO2, such that MO is a sum of BeO, MgO, CaO, SrO, and BaO; and R2O is a sum of Li2O, Na2O, K2O, Rb2O, Cs2O.
Claims17
A glass-ceramic composition, comprising:
- 40-80 mol % SiO2,
- >0-25 mol % MO,
- 15-40 mol % R2O,
- >0-10 mol % Al2O3,
- >0-10 mol % P2O5, and
- >0-5 mol % ZrO2,
- wherein MO is a sum of BeO, MgO, CaO, SrO, and BaO;
- wherein R2O is a sum of Li2O, Na2O, K2O, Rb2O, Cs2O;
- and
- wherein the glass-ceramic comprises lithium disilicate, apatite, and diopside phases.
7 more elements
A glass-ceramic composition, comprising:
- 50-70 mol % SiO2,
- >0-25 mol % MO,
- 15-40 mol % R2O,
- >0-5 mol % Al2O3,
- 0.5-5 mol % P2O5, and
- >0-5 mol % ZrO2,
- wherein MO is a sum of MgO and CaO;
- wherein R2O is a sum of Li2O, Na2O, and K2O;
- and
- wherein the glass-ceramic comprises lithium disilicate, apatite, and diopside phases.
7 more elements
A bulk nucleation process, comprising:
- heating at temperatures ranging 600-1000° C. for a predetermined time, a silicate-based composition comprising:
- 40-80 mol % SiO2,
- >0-25 mol % MO,
- 15-40 mol % R2O,
- >0-10 mol % Al2O3,
- >0-10 mol % P2O5, and
- >0-5 mol % ZrO2,
- wherein MO is a sum of BeO, MgO, CaO, SrO, and BaO;
- and
- wherein R2O is a sum of Li2O, Na2O, K2O, Rb2O, Cs2O,
- to form a glass-ceramic article wherein the glass-ceramic comprises lithium disilicate, apatite, and diopside phases.
8 more elements
Dependencies are inferred from the claim text.