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THE DEFLOCCULATION OF CLAY SLIPS AND RELATED PROPERTIES 1
Author(s) -
Scripture E. W.,
Schramm Edward
Publication year - 1926
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.1151-2916.1926.tb18321.x
Subject(s) - clay minerals , settling , mineralogy , materials science , dispersion (optics) , ball (mathematics) , viscosity , ball mill , alkali metal , composite material , geology , geotechnical engineering , chemistry , environmental science , mathematics , environmental engineering , physics , organic chemistry , mathematical analysis , optics
In an earlier paper 2 the authors have given the particle analysis and other tests of a number of English china clays, one English ball clay and several domestic kaolins. In this paper are presented the following additional data for the same clays: the carbon content as a measure of organic matter; the change in state of dispersion with pH for 20% slips as determined by settling tests; the change in viscosity with pH as determined with 40% slips; the alkali absorption for 20% and 40% slips. The more plastic clays are characterized by high organic content, high alkali absorption, and dispersion at low pH. Casting slips made up with the different china clays and two ball clays in varying proportions show that ball clay causes fluidity and that the plastic china clays produce more viscous slips than the less plastic.