Low CTE, Ion-Exchangeable Glass Compositions and Glass Articles Comprising the Same

Sinue Gomez (Inventor), Timothy J. Kiczenski (Inventor), John Christopher Mauro (Inventor), Robert Anthony Schaut (Inventor), Morten Mattrup Smedskjær (Inventor), Natesan Venkataraman (Inventor)

Research output: Patent


Glass compositions and glass articles comprising the glass compositions are disclosed. In one embodiment, a glass composition includes from about 65 mol.% to about 70 mol.% SiO2; from about 9 mol.% to about 14 mol.% Al2O3; and from about 0 mol.% to about 11 mol.% B2O3 as glass network formers. The glass composition also includes from about 5 mol.% to less than 10 mol.% alkali oxide R2O, wherein R is at least one of Li, Na, and K. The glass composition also includes from about 3 mol.% to about 11 mol.% of divalent oxide MO, wherein M is at least one of Mg, Ca, Ba, SrO and Zn. The glass composition has a coefficient of thermal expansion which is less than or equal to 55x10-7/°C and is amenable to strengthening by ion-exchange. The glass composition is well suited for use as the glass cladding layers of a laminated glass article.
Original languageEnglish
Patent numberPCT/US2013/028093
Filing date27/02/2013
Country/TerritoryUnited States
Publication statusPublished - 6 Sep 2013
Externally publishedYes

Cite this