Patent ID: 9145331
Filing Date: 2015-09-29
Classification: C03C,Y02E

Abstract:
1. A crystallizable glass composition containing, in % by mole in glass component composition, 40 to 70% SiO 2 , 5 to 35% MgO, 5 to 35% BaO, 5 to 35% ZnO, 0 to 20% CaO, 0 to 20% SrO, 0 to 5% B 2 O 3 , 0 to 2% Al 2 O 3 , and 0.1 to 30% La 2 O 3 +Y 2 O 3 +Gd 2 O 3 +Nb 2 O 5 +Ta 2 O 5 .