HIGH STRAIN POINT GLASSES

摘要

A family of glasses from the rare earth alumino-silicate (RE203 - A12O3 -SiO2) ternary system exhibiting high strain point and low liquidus temperatures; preferably the La2O3 - A12O3 -SiO2 ternary system. The glasses are excellent candidates for electronics applications, in particular for flat panel display devices, and have the following composition, expressed in mole percent and calculated from the glass batch on an oxide basis: 60-88% SiO2, 5-25% A12O3, and 2-15% RE2O3.