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THE EFFECT OF PARTICLE SIZE OF ZINC OXIDE ON THE CONSISTENCY OF GLAZE SLIPS 1
Author(s) -
Thomson H. G.
Publication year - 1929
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.1151-2916.1929.tb18089.x
Subject(s) - glaze , calcination , particle size , zinc , mineralogy , materials science , oxide , consistency (knowledge bases) , particle (ecology) , metallurgy , chemical engineering , chemistry , mathematics , ceramic , geology , engineering , geometry , biochemistry , oceanography , catalysis
No brand of oxide on the market is known to the author which does not have to be calcined to obtain satisfactory results in glazes, and it is further noted that a small amount of PbO present in the various grades is an essential constituent for satisfactory calcination. Microscopic examination showed an increase in particle size after calcining, although differences in uniformity of size and shape existed. The effect of zinc oxide in glaze slips was found to be dependent on its particle size and shape. Therefore the control‐of consistency of a glaze is simplified by the use of a properly calcined zinc oxide, by which a higher gravity and a more thinning range is obtained.