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Surface‐Tension‐Driven Flow in a Glass Melt
Author(s) -
McNEIL THOMAS J.,
COLE ROBERT,
SUBRAMANIAN R. SHANKAR
Publication year - 1985
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.1151-2916.1985.tb15318.x
Subject(s) - surface tension , capillary action , materials science , viscosity , free surface , capillary number , flow (mathematics) , mechanics , composite material , boron , tension (geology) , thermodynamics , mineralogy , chemistry , ultimate tensile strength , physics , organic chemistry
Motion driven by surface tension gradients was observed in a vertical capillary liquid bridge geometry in a sodium borate melt. The surface tension gradients were introduced by maintaining a temperature gradient on the free melt surface. The flow velocities at the free surface of the melt, which were measured using a tracer technique, were found to be proportional to the applied temperature difference and inversely proportional to the melt viscosity. The experimentally observed velocities were in reasonable accord with predictions from a theoretical model of the system.