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Wetting of Al 2 O 3 ‐SiO 2 Refractories by Molten Glass: I, Measurement of Wetting
Author(s) -
COMEFORO J. E.,
HURSH R. K.
Publication year - 1952
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.1151-2916.1952.tb13085.x
Subject(s) - wetting , contact angle , materials science , sessile drop technique , soda lime , composite material , drop (telecommunication) , silica glass , flat glass , mineralogy , chemistry , telecommunications , computer science
The wetting of alumina‐silica refractories by a soda‐lime‐silica glass at 1200°C. was studied by taking measurements from enlarged photographs of a glass drop on the refractory surface after various time intervals. The values calculated for the contact angles were in agreement with those obtained by direct measurement of the solid‐glass‐air interfaces. A review of the theoretical considerations validating the use of the contact angle as a means of measuring the wetting tendency is presented. The physical conditions which can influence the magnitude of the contact angle are also discussed, as is the method of calculating the contact angle. The rate at which the contact angles decreased indicated that an appreciable difference exists in the tendency of the molten glass to wet the various alumina‐silica refractories. A comparison is made of the wetting behavior of the refractories studied.