초록 ▼

The present invention is directed at a copper aluminosilicate glass, having coefficients of thermal expansion (CTEs) of between 20-82.times.10-7/.degree. C. (over a range of 25-500.degree. C.) and a softening points in the range of 660-1000.degree. C., being suitable for use as a sealing glass, espe

The present invention is directed at a copper aluminosilicate glass, having coefficients of thermal expansion (CTEs) of between 20-82.times.10-7/.degree. C. (over a range of 25-500.degree. C.) and a softening points in the range of 660-1000.degree. C., being suitable for use as a sealing glass, especially for borosilicate glass, and having a composition consisting essentially, in terms of weight percent on an oxide basis, of 35-68 SiO2, 3-25 Al2O3, 2-26 B2O3, 0-20 R2O, 1-30 RO, 2-33 CuO, 0-4 F, 0-10 MxOy, where R2O is an alkali oxide selected from the group consisting of Li2O, Na2O, and K2O, and RO is an alkaline earth oxide selected from the group consisting of CaO, MgO, ZnO, SrO, and BaO, and MxOy is a transition metal oxide selected from the group consisting of Co2O3, TiO2, NiO, MnO2, and Fe2O3.

대표청구항 ▼

1. A copper aluminosilicate glass having a composition, as expressed in weight percent on an oxide basis, that consists essentially of: about 48% to about 68% SiO2; about 3% to about 6% Al2O3; about 20% to about 26% B2O3; about 2% to about 10% CuO; 0% to about 30% RO; 0.05% to about 4% F; 0% to abou

1. A copper aluminosilicate glass having a composition, as expressed in weight percent on an oxide basis, that consists essentially of: about 48% to about 68% SiO2; about 3% to about 6% Al2O3; about 20% to about 26% B2O3; about 2% to about 10% CuO; 0% to about 30% RO; 0.05% to about 4% F; 0% to about 20% R2O; and 0% to about 10% MxOy; where RO is an alkaline earth oxide selected from the group consisting of CaO, MgO, ZnO, SrO, BaO; R2O is an alkali oxide selected from the group consisting of Li2O, Na2O, K2O; and MxOy is a transition metal oxide selected from the group consisting of Co2O3, TiO2, NiO, MnO2, and Fe2O3.