Alkaline-earth aluminosilicate glass for lamp bulbs

Details Alkaline-earth aluminosilicate glass for lamp bulbs Alkaline-earth aluminosilicate glass for lamp bulbs

C - Chemistry, Metallurgy

03

C

C03C 3/087 (2006.01) C03C 3/091 (2006.01) H01K 1/28 (2006.01) H01K 5/00 (2006.01)

Patent

CA 2416587

The invention relates to an alkaline-earth alumino- silicate glass for lamp bulbs, having a composition (in % by weight, based on oxide) of SiO2 > 55 - 64: Al2Q3 13 - 18 ; B2O3 0 - 5.5; M5O 0 - 7 ; CaO 5.5 - 14 ; SrO 0 - 8; BaO 6 - 17; ZrO2 0 - 2; CeO2 0 - 0.3; TiO2 0- 0.5; CoO 0.01 - 0.035; Fe2O3 0.005 - 0,05; NiO 0 - 0.03.

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