Viscosity and Glass Transition in Amorphous Oxides

Table 1

Commercial oxide glass compositions.

Glass family	Oxide, mass %
(application)	SiO2	Na2O	CaO	Al2O3	MgO	B2O3	BaO	PbO	K2O	ZnO
Vitreous silica
(Furnace tubes, Si	100
melting crucibles)
Soda-lime silicate:
Window	72.0	14.2	10.0	0.6	2.5		trace		0.6
Container	74.0	15.3	5.4	1.0	3.7				0.6
Bulb and tube	73.3	16.0	5.2	1.3	3.5
Tableware	74.0	18.0	7.5	0.5
Sodium borosilicate:
Chemical glassware	81.0	4.5		2.0		12.0
Waste immobilisation	43–53	6–24	0–14	3–19	0–5.3	8–17	misc.	misc.	misc.	misc.
Lead-alkali silicate:
Lead “crystal”	59.0	2.0		0.4				25.0	12.0	1.5
Television funnel	54.0	6.0	3.0	2.0	2.0			23.0	8.0
Aluminosilicate:
Halogen lamp	57.0	0.01	10.0	16.0	7.0	4.0	6.0		trace
Fibreglass “E”	52.9		17.4	14.5	4.4	9.2			1.0
Optical (crown)	68.9	8.8				10.1	2.8		8.4	1.0