Optically detectable, floatable, arsenic- and antimony-free, ceramisable lithium-aluminium-silicate glass

摘要

Optically detectable, arsenic- and antimony free, ceramic lithium-aluminosilicate float glass, in prestressed from, comprises e.g. silicon dioxide (55-69 wt.%), aluminum oxide (19-25 wt.%), lithium oxide (3.2-5 wt.%), sodium oxide (0-1.5 wt.%), potassium oxide (0-1.5 wt.%), magnesium oxide (0-2.2 wt.%), calcium oxide (0-2 wt.%), strontium oxide (0-2 wt.%), barium oxide (0-2.5 wt.%), zinc oxide (0 to less than 1.5 wt.%), titanium dioxide (1-3 wt.%), zirconium oxide (1-2.5 wt.%), tin oxide (0.1 to less than 1 wt.%), phosphorus pentoxide (0-3 wt.%) and boric oxide (0-2 wt.%). Optically detectable, arsenic- and antimony free, ceramic lithium-aluminosilicate float glass, in prestressed from, comprises silicon dioxide (55-69 wt.%), aluminum oxide (19-25 wt.%), lithium oxide (3.2-5 wt.%), sodium oxide (0-1.5 wt.%), potassium oxide (0-1.5 wt.%), magnesium oxide (0-2.2 wt.%), calcium oxide (0-2 wt.%), strontium oxide (0-2 wt.%), barium oxide (0-2.5 wt.%), zinc oxide (0 to less than 1.5 wt.%), titanium dioxide (1-3 wt.%), zirconium oxide (1-2.5 wt.%), tin oxide, (0.1 to less than 1 wt.%), phosphorus pentoxide (0-3 wt.%), neodymium oxide (0.01-0.6 wt.%, or 100-3000 ppm), cobalt oxide (0-0.005 wt.%), fluorine (0-1 wt.%) and boric oxide (0-2 wt.%), where the sum of titanium dioxide, zirconium oxide and tin oxide is 2.5-5 wt.%.