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Wetting of Al 2 O 3 ‐SiO 2 Refractories by Molten Glass: II, Effect of Wetting on Penetration of Glass into Refractory
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.tb13088.x
Subject(s) - penetration (warfare) , wetting , materials science , composite material , porosity , penetration rate , geotechnical engineering , operations research , engineering
This portion of the investigation indicates the importance of the wetting behavior of molten glass to its rate of penetration into the same refractories studied in Part I. The principles concerning the penetration of liquids into porous solids are discussed. The rate of penetration of the glass into the refractories was evaluated by two methods with good correlation. Further information concerning the penetration of the glass into the refractories was obtained from a study of sections of the glass‐refractory interfaces. The relative resistance of each of the refractories to the penetration of the glass was evaluated. By a modification of the “pressure displacement method,” the effective pore sizes of the refractories were determined. The average pore radii of the refractories tested are compared. A break was observed in the relationship between the rate of penetration and the pore size of 99% alumina bodies with two liquids of markedly different properties. An explanation for this sudden change in the rate of penetration has been given, based upon the change in pore volume with change in pore radius.