Comparison of blue pigments prepared by two different methods

The color efficiency of ceramic glaze blue pigments obtained by synthesis methods was compared. the fired pigments and enameled samples were characterized by XRD, UV-vis-NIR spectroscopy, CIE-L∗a∗b∗ color-measurements, and SEM. The pigments obtained by the Pechini method presented a better solubility in the molten glazes than the pigments obtained by the mechanical mixture of the oxide precursors. The pigments obtained by the Pechini method also developed a bluer color hue than the pigments obtained by the mechanical mixture of the oxide method.