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Systematic Study of Simple Titania‐Bearing Porcelain Enamels
Author(s) -
FRIEDBERG A. L.,
PETERSEN F. A.
Publication year - 1950
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.1151-2916.1950.tb13466.x
Subject(s) - gloss (optics) , enamel paint , materials science , anatase , mineralogy , reflectivity , composite material , chemistry , optics , physics , photocatalysis , catalysis , coating , biochemistry
An extensive composition study of titania enamels and their properties is described. The compositions investigated contained only six constituents, namely, Na 2 O, K 2 O, SiO 2 , B 2 O 3 , TiO 2 , and F 2 . Systematically and over a wide range, the contents of SiO 2 , B 2 O 3 , TiO 2 , and alkali were varied. One hundred enamels in all were made and the resulting properties were determined. Properties noted included flow, expansion, color, percentage of anatase, gloss, reflectance, and acid resistance at various firing temperatures. Enamel Y12, representing a small area in this large composition field, exhibited the properties requisite for a good hollow–ware white cover–coat enamel. Compared with previously studied titania enamels, this enamel is “softer”; i.e., it fires at lower temperatures, has the desired higher flow and expansion, yet still possesses the required properties of color stability, reflectance, gloss, acid resistance, and workability.