**Surface tension calculation of glass melts at 1400°C**

A. Kucuk, A. G. Clare, L. Jones

*"An estimation of the surface tension of silicate glass melts at 1400°C using statistical analysis";*

Glass Technol., vol. 40, Oct 1999, no. 5, p 149-153.

*Abstract:* Surface tension parameters for oxide components in silicate glass melts were estimated using a multiple linear regression analysis on the values reported both in the literature and our own measured data. The values reported in the literature have a 1-5% internal error, the surface tension measured for this paper has an error of 1-3%. The F-test analysis showed that the regression is significant. The following formula was found for the surface tension estimation of silicate melts at 1400°C:

Surface tension in mN/m = 271**.**2

+1**.**48 * mol% Li2O

-2**.**22 * mol% K2O

-3**.**43 * mol% Rb2O

+1**.**96 * mol% MgO

+3**.**34 * mol% CaO

+1**.**28 * mol% BaO

+3**.**32 * mol% SrO

+2**.**68 * mol% FeO

+2**.**92 * mol% MnO

-1**.**38 * mol% PbO

-2**.**86 * mol% B2O3

+3**.**47 * mol% Al2O3

-24**.**5 * mol% MoO3 **(Download surface tension calculator, 26 kB)**