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Colorimetric and microscopic study of the thermal behavior of new ceramic pigments
Author(s) -
SaviucPaval Ana Mihaela,
Victor Sandu Andrei,
Marcel Popa Ionel,
Anca Sandu Irina Crina,
Petru Bertea Andrei,
Sandu Ion
Publication year - 2013
Publication title -
microscopy research and technique
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.536
H-Index - 118
eISSN - 1097-0029
pISSN - 1059-910X
DOI - 10.1002/jemt.22201
Subject(s) - pigment , glazing , chromophore , phosphate , ceramic , colored , materials science , thermal , mineralogy , precipitation , chemical engineering , chemistry , composite material , organic chemistry , thermodynamics , physics , meteorology , engineering
The article studies thermal resistance variation by analyzing the colorimetric parameters correlated with the optical microscopy data of two groups of ceramic pigments obtained by co‐precipitation in aqueous medium of phosphate anion and of a mixture of chromium phosphate with various chromophore cations. This research enabled us to reveal the thermal thresholds/domains within which significant color changes occur, thus allowing the choice of pigments compatible with the thermal varnishing‐glazing processes involved in the manufacture of tesserae for mosaic and stained glass and of colored materials for floor tiles, wall tiles and painted porcelain. Microsc. Res. Tech. 76:564–571, 2013 . © 2013 Wiley Periodicals, Inc.