- Patent Title: Peraluminous lithium aluminosilicates with high liquidus viscosity
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Application No.: US16175016Application Date: 2018-10-30
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Publication No.: US11136258B2Publication Date: 2021-10-05
- Inventor: Matthew John Dejneka , Benjamin Zain Hanson , Alexander I Priven
- Applicant: CORNING INCORPORATED
- Applicant Address: US NY Corning
- Assignee: CORNING INCORPORATED
- Current Assignee: CORNING INCORPORATED
- Current Assignee Address: US NY Corning
- Agent John P. McGroarty
- Main IPC: C03C3/097
- IPC: C03C3/097 ; C03C3/087 ; G06F1/16 ; C03C21/00 ; C03C3/091 ; C03C3/093

Abstract:
The embodiments described herein relate to glass articles that include mechanically durable glass compositions having high liquidus viscosity. The glass articles may include glass compositions having from 50 mol. % to 80 mol. % SiO2; from 7 mol. % to 25 mol. % Al2O3; from 2 mol. % to about 14 mol. % Li2O; 0.4 mol. % P2O5; and less than or equal to 0.5 mol. % ZrO2. The quantity (Al2O3 (mol. %)−R2O (mol. %)−RO (mol. %)) is greater than zero, where R2O (mol. %) is the sum of the molar amounts of Li2O, Na2O, K2O, Rb2O, and Cs2O in the glass composition and RO (mol. %) is the sum of the molar amounts of BeO, MgO, CaO, SrO, BaO, and ZnO in the glass composition. A molar ratio of (Li2O (mol. %))/(R2O (mol. %)) may be greater or equal to 0.5. In embodiments, the glass composition may include B2O3. The glass compositions are fusion formable and have high damage resistance.
Public/Granted literature
- US20190127265A1 PERALUMINOUS LITHIUM ALUMINOSILICATES WITH HIGH LIQUIDUS VISCOSITY Public/Granted day:2019-05-02
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