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ORIGIN OF THE COLOR PRODUCED ON RED BODIES BY ZINC VAPOR 1
Author(s) -
GreavesWalker A. McKinley
Publication year - 1931
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.1151-2916.1931.tb16662.x
Subject(s) - zinc , glaze , glazing , red color , pigment , absorption (acoustics) , chemistry , materials science , mineralogy , optics , metallurgy , composite material , physics , ceramic , organic chemistry
The green color produced by zinc vapor on clays that fire to a red color is not due to the formation of a compound of that color but to the absorption of certain rays of the light spectrum by the yellow zinc glaze and the bluish reduced zone beneath it. To obtain good green colors it is necessary to have the surface of the body reduced to a good blue color. Greens may be produced during the glazing period and lost during the cooling period due to re‐oxidation of the surface of the product. A zinc process is given in detail.