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J. Korean Ceram. Soc. > Volume 46(4); 2009 > Article
Journal of the Korean Ceramic Society 2009;46(4): 397.
doi: https://doi.org/10.4191/kcers.2009.46.4.397
The Influence of Firing Conditions on the Color Properties of Pr-ZrSiO4 Pigments Synthesized Using Rice Husk Ash
Kyu-Ri Pyon, Byung-Ha Lee
Department of Material Science & Engineering, Myongji University
Using rice husk ash as silica, the influence of the firing temperature and holding time on the color intensity of Pr-$ZrSiO_4$ pigments were investigated. The Pr-yellow pigments were calcined at 500, 700, 800, 900, 950, 1000, $1100^{circ}C$ in a ceramic method. The synthesized pigments were characterized by DT-TG thermal analysis, X-ray diffraction, UV-Vis spectroscopy, and SEMEDAX analysis. The relationship between the zircon phase-formation growth and Pr-yellow color development was evaluated and the optimum firing conditions were determined. The color of the pigment samples was characterized on the grounds of the Commission Internationale de l'Eclairage (CIE) standard procedure (CIE $L^*a^*b^*$ measurement) after an application on the bisque ceramic tile.
Key words: Rice husk ash, Pr-$ZrSiO_4$ pigment, Firing condition, Color properties
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