ALKALINE-EARTH ALUMINOBOROSILICATE GLASS AND THE USES THEREOF

摘要

The present invention relates to had a low alkali metal content of alkali or alkaline earth metal aluminoborosilicate glasses with a composition (in w -%, based on oxide) sio φ 2 φ & 49 - 65; b φ 2 φ o φ 3 φ 0,5 - 4,5; al φ 2 φ o φ 3 φ & 10 - 23; mgo & 2,7 - 7; cao 0,5 - 10; sro & 15,5 - 22; bao 0,5 - 7; with mgo + cao + sro + bao 20 - 35; sno φ 2 φ 0 - 2; zro φ 2 φ 0 - 2; tio.sub.2 φ 2 φ 0 - 2; ceo φ 2 φ 0 - 1,5; zno 0 - 1; na φ 2 φ o 0 - 2; k φ 2 φ o 0 - 2; with na φ 2 φ o + k φ 2 φ o 0 - 3. Dollars a the glasses are particularly suitable for use as a substrate in the thin layer photovoltaics are and as lamps glasses.