Patent ID: 9409814
Filing Date: 2016-08-09
CPC Classification: C03C,H01M,Y02E

Claim Text:
1. A crystallizable glass composition capable of precipitating MgO-based crystals as main crystals by thermal treatment, the crystallizable glass composition containing, in terms of % by mole in glass component composition, 0.1 to 30% La 2 O 3 +Nb 2 O 5 +Y 2 O 3 +Ta 2 O 5 +Yb 2 O 3 , 31% to 50% SiO 2 , 10 to 45% MgO, 5 to 40% BaO, 0 to 15% B 2 O 3 , 0 to 20% CaO, and 0 to 6% Al 2 O 3 , wherein the crystallizable glass composition is in powder form.