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FINAL PROGRESS REPORT ON PLASTIC PRIMARY NORTH CAROLINA KAOLINS, METHODS OF THEIR USE, DEVELOPMENT OF VITREOUS BODIES, AND EXPERIMENTS WITH A CONTINUOUS, HIGH‐TEMPERATURE, ELECTRIC TUNNEL KILN: PARTS I–VII *
Author(s) -
Gould R. E.,
Hbdquist A. J.
Publication year - 1939
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.1151-2916.1939.tb19453.x
Subject(s) - kiln , ceramic , materials science , rotary kiln , modulus , metallurgy , composite material , mineralogy , geology
A bstract Data are presented covering twelve months of tests on the commercially refined plastic North Carolina kaolins. Both days had constant physical properties. Chemical analyses and ceramic laboratory tests show that the commercially refined kaolins are more plastic, stronger, and better than those which were refined in the laboratory and previously recorded. Treatment in a vacuum pug mill was necessary to develop the maximum strength and plasticity of the kaolins. The modulus of rupture, both dry and fired, is quite high for a primary kaolin, and the fired color is good.