GLASS COMPOSITION AND GLASS SPACER USING THE SAME

摘要

Disclosed is a glass composition which has good moldability and hardly causes filed failure when formed into a spacer for an electron beam-excited display. The glass composition comprises components satisfying the following requirements (by mass): 20 = SiO<SUB>2</SUB> < 40, 6 < B<SUB>2</SUB>O<SUB>3</SUB> = 30, 0 = Al<SUB>2</SUB>O<SUB>3</SUB> = 20, 45 = (SiO<SUB>2</SUB> + B<SUB>2</SUB>O<SUB>3</SUB> + Al<SUB>2</SUB>O<SUB>3</SUB>) = 74, 0 = MgO = 15, 5 = CaO = 40, 0 = SrO = 30, 0 = BaO < 25, 0 < (SrO + BaO) = 50, 20 = (MgO + CaO + SrO + BaO) = 60, 0 = ZnO = 10, 0 = ZrO<SUB>2</SUB> < 10, 0 = LA<SUB>2</SUB>O<SUB>3</SUB> = 20, 0 = Y<SUB>2</SUB>O<SUB>3</SUB> = 10, 0 = TiO<SUB>2</SUB> = 3, 1 = Fe<SUB>2</SUB>O<SUB>3</SUB> = 12, 0 = Nb<SUB>2</SUB>O<SUB>5</SUB> = 10, 0 = Ta<SUB>2</SUB>O<SUB>5</SUB> = 10, and 1 = TiO<SUB>2</SUB> + Fe<SUB>2</SUB>O<SUB>3</SUB> + Nb<SUB>2</SUB>O<SUB>5</SUB> + Ta<SUB>2</SUB>O<SUB>5</SUB> = 12, and contains substantially no alkali metal oxide.