The Study on Measurement Method of Glass Melts' Surface Tension at High Temperature

Abstract

At high temperature conditions, the glass molten by the combined action of gravity and surface tension form an oval. Through digital image measurement system we can obtain glass molten oval contours and the contact angle. By the Bashforth-Adams equation which deduced from Young- Laplace equation to obtain the glass molten' surface tension at the corresponding temperature conditions. This method has good reproducibility and accuracy.

Glass-contact refractory of the nuclear waste vitrification melters in the United States: a review of corrosion data and melter life

“…Measurements of droplet shape using the sessile drop method are commonly used to determine surface tension for glass melts. The Bashforth and Adams method based on the Young-Laplace equation can be used with measurements of droplet geometry to determine contact angle, surface tension, and drop volume [162]. Additionally, images can be analyzed computationally with higher accuracy using numerical procedures that derive a best fit to the drop profile over the entire meridional section instead of at just a few points [163].…”

Comparison of the melting properties of glass substrates for thin film transistor liquid crystal display and organic light-emitting diode

“…Surface tension of the glass melt was measured by Sessile Drop method [10][11][12]. Figure 4(a) showed the diagram of the experimental setup.…”

Quantitative evaluation of the improvement of B2O3 for the melting and fining process of high aluminium silicate glass batches under reduced atmospheric pressure

“…Surface tension of the glass melt was measured by Sessile Drop method [13] on the GST-1550 system design by Beijing XuHui Xinrui Technology Co., Ltd, including heating system, optical system, imaging system, and image processing and computing system. The scheme of surface tension system was displayed in Figure 1.…”