抄録
Bi2O3–Nb2O5 solid solutions were synthesized by conventional ceramic method and their color properties were investigated as environmental-friendly inorganic yellow pigments. Powder samples showed from light yellow color to brilliant reddish yellow color depending on their composition. The most brilliant reddish yellow color was obtained for 0.94Bi2O3–0.06Nb2O5 composition heated at 800°C for 30 min, which had color parameters (L*a*b*) of L* = 66.8, a* = 21.4, and b* = 63.6. The a*, b* values are comparable to that of commercial Cr2O3–Sb2O5–TiO2 based reddish yellow pigments. Since the present compounds are composed of nontoxic elements, it should be an attractive alternative to the conventional reddish yellow pigments.
