Thermal analysis of the (Bi2O3)1−x(Y2O3)x pigments
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The synthesis of new compounds based on Bi2O3 is investigated because they can be used as new ecological inorganic pigments. Chemical compounds of the (Bi2O3)1−x(Y2O3)x type were synthesized. The host lattice of these pigments is Bi2O3 that is doped by Y3+ ions. The incorporation of doped ions provides the interesting colours and contributes to a growth of the thermal stability of these compounds. The simultaneous TG-DTA measurements were used for determination of the temperature region of the pigment formation and thermal stability of pigments. This paper also contains the results of the pigment characterization by X-ray powder diffraction and their colour properties.
Keywordsbismuth-rare earth mixed oxides colour properties ecological pigments inorganic pigments thermal analysis
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- 1.M. Trojan, Z. Šolc and M. Novotný, Pigments, Kirk-Othmer Encyclopedia of Chem. Technol., p. 45, Vol. 19, J. Wiley and Sons Inc., New York 1996.Google Scholar