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AMERICAN CLAYS AS COMPARED TO ENGLISH CLAYS IN WHITE WARE BODIES 1
Author(s) -
Fritz E. H.
Publication year - 1925
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.1151-2916.1925.tb16392.x
Subject(s) - vitrification , geology , materials science , mineralogy , geotechnical engineering , physics , nuclear physics
A summary of the discussion at Atlantic City on this subject is given, bringing out Dr. Langenbeck's charge that the failure to make wider use of American clays is due to the ceramic profession, which has not given American clay producers specific information as to requirements which must be met in order to compete with English clays. This charge is refuted, because such information is available and various tests which are made are enumerated. The charge is made that many clay producers either do not know how, or, are not sufficiently interested to make use of such information when it is given them. Comparative results with English and American clays are given in regard to general uniformity, plasticity, bonding strength and vitrification. Equal or better results were obtained with the American clays in every case except vitrification temperature of the ball clays which was somewhat higher. A body was developed from the best American clays which equaled any of the English clay bodies, the difference in vitrification temperature of the ball clays apparently having no adverse effect at a firing temperature of cone 10. The results are based on commercial use. It is concluded that English clays can be eliminated in most white ware bodies.