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Synthesis of the Fe2O3-CoO-Cr2O3-MnO2 pigments by co-precipitation method  

Choi, Soo-Nyong (Department of Materials Science & Engineering, Myongji University)
Lee, Byung-Ha (Department of Materials Science & Engineering, Myongji University)
Abstract
The inorganic pigments of $Fe_2O_3-CoO-Cr_2O_3-MnO_2$ were synthesized by the co-precipitation method. $FeCl_3,\;CoCl_2,\;CrCl_3\;and\;MnCl_2$ are used for the starting raw materials, and 2 N-KOH for precipitator. $MnCl_2$ is secured with 10 mole%, and 6 composition ratios are used with three ingredients to synthesize the pigments. The samples were calcined at $1350^{\circ}C/1.5h$. The resulting pigments were characterized by using XRD, FT-IR, SEM, and UV spectrophotometer. 6wt% pigments were applied to lime glaze and lime-barium glaze respectively firing at $1260^{\circ}C$ for oxidation atmosphere and $1240^{\circ}C$ for reduction one. The results of color analysis by using UV spectrophotometer showed black, bluish black and dark grayish green.
Keywords
Co-precipitation method; Color; Pigments;
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Times Cited By KSCI : 2  (Citation Analysis)
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