Patent ID: 11932574
Assignee: CORNING INCORPORATED
Field: Materials, metallurgy (Chemistry)
Classification: CPC C  H  G | IPC C  G  H

Claim 0:
1. A glass article comprising:
from greater than or equal to 5 mol % to less than or equal to 11 mol % Li2O;
from greater than or equal to 60 mol % to less than or equal to 74 mol % SiO2;
from greater than or equal to 7 mol % to less than or equal to 18 mol % Al2O3; and
a liquidus viscosity of less than or equal to 300 kP,
wherein RIannealed−RIas formed is greater than or equal to 0.0003, where RIannealed is a refractive index at a wavelength of 589 nm of the glass heated at the annealing point of the glass for 1 hour and RIas formed is a refractive index at a wavelength of 589 nm of the glass as formed, and an annealing point of the glass is greater than or equal to 580° C. and less than or equal to 675° C.