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Effect of Trace Impurity Levels on the Viscosity of Vitreous Silica
22
Citations
2
References
1983
Year
Materials ScienceMolecular SieveEngineeringTransformation‐range Viscosity DependenceMechanical EngineeringVitreous SilicaRheologyCalcium AluminateTrace Impurity LevelsChemistryAl 2Alkali Oxide
The transformation‐range viscosity dependence of vitreous silica on Al 2 O 3 (25 to 350 molar ppm) and alkali oxide (1.0 to 75 molar ppm) was investigated. Viscosity increased with the molar ratio Al 2 O 3 /alkali oxide up to ∼8 and was constant at higher ratios .
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