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COLOR STABILITY IN ENAMELS *
Author(s) -
Baldwin William J.
Publication year - 1935
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.1151-2916.1935.tb19407.x
Subject(s) - frit , enamel paint , materials science , oxide , boric acid , lime , thixotropy , metallurgy , mineralogy , chemistry , composite material , organic chemistry
A series of frits in which the ratio of boric oxide to sodium oxide was varied was milled with various color oxides and the stability of the color was noted at different temperatures. It was found that a frit having a boric‐oxide content in excess of the sodium‐oxide content was preferable. Colors such as reds and mahoganies were found to be more stable in these frits and the general workability of the enamel was better, There was no trouble from these enamels settling as was the case with frits of a high sodium‐oxide and low boric‐oxide content. The presence of lime was found to be essential in maintaining color stability in the frits tested and had a marked influence on the viscosity of the enamel.