Premium
Effects of Zirconium‐Type Opacifiers on Properties of Glazes
Author(s) -
JACOBS C. W. F.,
BALDWIN W. J.
Publication year - 1954
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.1151-2916.1954.tb14034.x
Subject(s) - zirconium , glaze , zircon , materials science , cubic zirconia , opacity , gloss (optics) , composite material , mineralogy , metallurgy , ceramic , geochemistry , geology , coating , physics , optics
The use of various zirconium‐type opacifiers such as zircon, zirconia, and the alkaline‐earth silicates of zirconium in fritted and raw glazes maturing in the range cones 06 to 04 and cones 9 to 11, respectively, and the properties of the resulting slips and fired glazes were investigated. Substitution of the various opacifiers was in each instance based on the molecular glaze composition. In the fritted glazes maturing at cones 06 to 04 where the use of all types of zirconium opacifiers was not possible without altering the molecular composition, optimum properties were obtained with zircon. In the raw type of glaze maturing at cones 9 to 11, in which a greater variety of opacifier substitutions could be made, combinations of the alkaline‐earth silicates of zirconium as opacifiers produced a marked improvement in slip properties and a definite reduction in opacifier segregation compared with glazes opacified with zircon or with zirconia. Use of the alkaline‐earth silicates of zirconium did not impair other fired properties such as opacity, gloss, texture, and finish.