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J. Korean Ceram. Soc. > Volume 45(8); 2008 > Article
Journal of the Korean Ceramic Society 2008;45(8): 453.
doi: https://doi.org/10.4191/kcers.2008.45.8.453
Cr-doped Y2O3-Al2O3계 붉은 안료의 합성과 적용
신경현, 이병하
명지대학교 신소재공학과
Synthesis of Cr-doped Y2O3-Al2O3 Red Pigments and their Application
Kyung-Hyun Shin, Byung-Ha Lee
Department of Materials Science & Engineering, Myongji University
New inorganic red pigments based on Cr-doped $Y_2O_3$ and $Al_2O_3$ were synthesized by solid state method and characterization of their pigments were characterized by using XRD, FT-IR, SEM and UV-Vis spectrophotometer. The single perovskite phase revealed at $1450^{circ}C{sim}1550^{circ}C$ for 6 h due to using mineralizers. The color of pigment powders resulted out various red-shades depending on the compositions of used materials and temperatures. Glazed tiles painted with pigment powders showed red color in oxidation and reduction firing. The best red colour was obtained when the $Cr_2O_3$ was used 0.04 mole at $1450^{circ}C$ for 6 h.
Key words: Red pigments, Solid state method, Perovskite, Reduction firing
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