Synthesis and Evaluation of the Color of Ceria-Zirconia-Yttria Based Solid Solution Powders
Masaya AMIMOTO and Masakuni OZAWA
Abstract:Ceria-zirconia-yittria solid solution@powders were synthesized by coprecipitation method. The products were characterized by XRD, colorimetric assessment and UV-Vis diffuse reflectance. A fluorite-type cubic phase was identified for all of the samples heated at 900C, regardless of the amount of Zr content. Diffuse reflectance spectra of the solid solutions in the UV region show the broad shoulder-type band at 320?340 nm, which is assigned to interband transitions in CeO2. The most absorption of visible light and the yellow color were observed in the range of x=0.3-0.7 in ZrxCe0.8-xY0.2O1.9. Key Words:Ceria-ziriconia, Solid solution, Coprecipitation, Color property, Diffuse reflectance spectroscopy