Corning Incorporated
IRON- AND MANGANESE-DOPED TUNGSTATE AND MOLYBDATE GLASS AND GLASS-CERAMIC ARTICLES

Abstract:

A glass-ceramic that includes: SiO.sub.2 from 40 mol % to 80 mol %; Al.sub.2O.sub.3 from 3 mol % to 20 mol %; B.sub.2O.sub.3 from 3 mol % to 50 mol %; WO.sub.3 plus MoO.sub.3 from 1 mol % to 18 mol %; Fe.sub.2O.sub.3 plus MnO.sub.2 from 0.1 mol % to 2 mol %; and R.sub.2O from 0 mol % to 15 mol %. The R.sub.2O is one or more of Li.sub.2O, Na.sub.2O, K.sub.2O, Rb.sub.2O and Cs.sub.2O. Further, R.sub.2O--Al.sub.2O.sub.3 ranges from -12 mol % to +4 mol %.