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INFLUENCE OF VARIABLE AMOUNTS OF NEW YORK TALC, FLINT, AND CALCINED CLAY ON SERVICEABILITY OF GLAZÉD COOKING‐WARE BODIES *
Author(s) -
Burnham Forrest,
Tuttle Milton A.
Publication year - 1945
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.1151-2916.1945.tb14515.x
Subject(s) - talc , glaze , calcination , materials science , crazing , serviceability (structure) , thermal shock , composite material , mineralogy , metallurgy , geology , chemistry , ceramic , engineering , biochemistry , polymer , structural engineering , catalysis
A bstract The effect of composition on the ability of glazed dishes to withstand thermal‐shock treatments ordinarily received in cooking was studied. Bodies which gave best results contained approximately 10% of New York talc and also a small amount of calcined clay substituted for potters' flint. Bodies which had sufficiently high thermal expansion to throw the glaze into moderate or strong compression gave the best results. A terra sigillata finish applied to talc‐free bodies was found to withstand autoclave treatment without crazing, and ware so made stood up very well in service tests.