Corning Incorporated
Glass compositions with improved chemical and mechanical durability

Abstract:

The embodiments described herein relate to chemically and mechanically durable glass compositions and glass articles formed from the same. In an embodiment the glass composition may include from about 67 mol. % to about 80 mol. % SiO.sub.2; from about 3 mol. % to about 13 mol. % alkaline earth oxide; from about 2 mol. % to about 10 mol. % Al.sub.2O.sub.3; from about 2 mol. % to about 18 mol. % alkali oxide, wherein the alkali oxide comprises non-zero amounts of Na.sub.2O; from 0 mol. % to about 4 mol. % B.sub.2O.sub.3; and from about 0.01 mol. % to about 1 mol. % of a fining agent.