The temperature and composition dependence of container glass viscosity.

Autor:	Šimurka, Peter
Další autoři:	Liška, Marek, 1951-
Jazyk:	angličtina
Předmět:	sklo a skleněné výrobky teplota chemie glass and glassware temperature chemistry články journal articles
Druh dokumentu:	Non-fiction
ISSN:	0862-5468
Abstrakt:	Abstract: The regression model of temperature and composition dependence of glass viscosity was developed by nonlinear regression analysis. A minimalisation of weighted sum of squared deviations included 753 viscosity points from 257 compositions of industrially produced container glasses. The temperature dependence of viscosity was described by Fulcher's equation with free volume theory term. The composition dependence of coefficients A, B, T0 was expressed by linear polynomials of mole fractions of oxides MgO, CaO, Al2O3, Na2O and K2O. The statistical methods were used to verify the reliability of the proposed model. Practical use of the regression model was shown by the calculation of glass composition with required values of viscosity curve.
Databáze:	Katalog Knihovny AV ČR
Externí odkaz:	Plný text