title: Colorimetric and microscopic study of the thermal behavior of new ceramic pigments.
abstract: 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.
authors.affiliation: "Sf. Ap. Andrei" School of Arts and Crafts, 34 Victoriei, Blvd., 751200 Dorohoi, Romania.
authors.forename: Ana Mihaela
authors.initials: AM
authors.lastname: Saviuc-Paval
authors.forename: Andrei
authors.initials: A
authors.lastname: Victor Sandu
authors.forename: Ionel
authors.initials: I
authors.lastname: Marcel Popa
authors.forename: Irina Crina
authors.initials: IC
authors.lastname: Anca Sandu
authors.forename: Andrei
authors.initials: A
authors.lastname: Petru Bertea
authors.forename: Ion
authors.initials: I
authors.lastname: Sandu