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PROPERTIES OF CLAY CASTING SLIPS *
Author(s) -
Loomis George A.
Publication year - 1940
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.1151-2916.1940.tb14228.x
Subject(s) - castability , casting , slip (aerodynamics) , grain size , materials science , metallurgy , electrolyte , wetting , composite material , mineralogy , geology , chemistry , engineering , alloy , electrode , aerospace engineering
A bstract Nine casting slips were prepared, using bodies of the sanitary porcelain type. The electrolyte was a combination of 60%“N” brand sodium silicate and 40% sodium carbonate. Its amount was adjusted in each body slip to produce a cast having the right characteristics according to the “feel” test; the specific gravity of each slip was constant. The grain‐size distribution of each slip was determined as well as the casting rate, consistency, and pH when the casting slips were first prepared and again after 24‐, 48‐, and 96‐hour aging periods. There is a reasonably close relation between castability and the grain‐size distribution. The pH of the body compositions differed, but there was little or no change in its value with the age of the casting slip up to 96 hours. It is concluded that the determination of grain size and pH should be of considerable aid in the control of casting slips.