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SURFACE TENSION MEASUREMENTS ON MOLTEN GLASS BY A MODIFIED DIPPING CYLINDER METHOD *
Author(s) -
Babcock C. L.
Publication year - 1940
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1940.tb14186.x
Subject(s) - surface tension , viscosity , maximum bubble pressure method , thermodynamics , bubble , mineralogy , atmospheric temperature range , materials science , cylinder , logarithm , composite material , chemistry , analytical chemistry (journal) , mechanics , mathematics , geometry , chromatography , physics , mathematical analysis
A bstract Surface tension measurements have been made on a series of both calcite and dolomite lime glasses by using a modified dipping cylinder method. The measurements cover the temperature range from 1100° to 1400°C. and the viscosity range from logarithm viscosity = 1.65 to logarithm viscosity = 3.30 (45 to 2000 poises). Measurements on ordinary liquids, of known surface tensions were made for check purposes. The results obtained on the glasses agree well with published data obtained by the maximum bubble‐pressure method. The temperature coefficient of surface tension is approximately —0.02 dyne per cm. per degree C. The surface tension of glass at a particular temperature may be represented as a linear function of composition on a mol. fraction basis.