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STRONTIA AND ITS PROPERTIES IN GLAZES *
Author(s) -
McCutchen Earl S.
Publication year - 1944
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.1151-2916.1944.tb14899.x
Subject(s) - glaze , frit , lime , materials science , ceramic glaze , thermal expansion , mineralogy , metallurgy , composite material , chemistry , ceramic
A bstract Strontia has proved to be a strong flux and a desirable glaze ingredient when it is used to replace PbO, ZnO, and CaO in a typical dinnerware glaze. By including it in the frit, the fluidity of the glaze was increased to a marked degree when it was substituted for ZnO and CaO and it also lowered the deformation temperature in the replacement of the latter oxide. Thermal‐expansion tests indicate that strontia has practically the same effect as lime on glaze expansion. Glazes of excellent visual and physical properties were obtained in a series of low‐lead and leadless compositions containing strontia.