Corning Incorporated
Ion exchangeable glass article for three-dimensional forming

Abstract:

An alkali aluminosilicate glass that can be chemically strengthened and formed into a three dimensional shape. The glass has a softening point of less than about 825.degree. C. and a high temperature coefficient of thermal expansion of less than about 30 parts per million (ppm)/.degree. C. The glass may be ion exchanged after the three dimensional shape is formed. When ion exchanged, the glass has a surface layer that is under a compressive stress of at least about 700 MPa.