Open AccessThe effect of lanthanides on color properties of the (Bi2O3)0.7(Ln2O3)0.3 compounds
Author(s) -
Petra Šulcová,
Eva Proklešková
Publication year - 2008
Publication title -
journal of mining and metallurgy. section b, metallurgy/journal of mining and metallurgy. section b, metallurgy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.42
H-Index - 20
eISSN - 2217-7175
pISSN - 1450-5339
DOI - 10.2298/jmmb0801027s
Subject(s) - pigment , orange (colour) , lanthanide , materials science , solid state , solid solution , reflectivity , ceramic , nuclear chemistry , mineralogy , analytical chemistry (journal) , chemistry , ion , optics , environmental chemistry , organic chemistry , metallurgy , physics , food science
(Bi2O3)0.7(Ln2O3)0,3 solid solutions were synthesized as new inorganic yellow and orange pigments and their color properties have been investigated as possible ecological materials. The pigments were prepared by the solid state reaction of mixed oxides (Bi2O3)0.7(Ln2O3)0.3 of various rare earth cations (Ln = Eu, Gd, Tm, Yb and Lu). All the synthesized pigment samples were found to have color coordinates, low a* and high b* and exhibit the color from pale light yellow to orange. Reflectance spectra of the samples show high reflectance percentage in the 600 - 700 nm range. Characterization of the (Bi2O3)0.7(Ln2O3)0,3 solid solutions suggests that they have a potential to be alternative yellow colorants for paints, inks, plastics, and ceramics