Novel Environment-friendly Green Pigments for Over-glazed Decoration of <i>Arita</i> Ware

MASUI Toshiyuki, SHIRAISHI Atsunori, NAKADO Hiroki, TAKEUCHI Naoki, WENDUSU, IMANAKA Nobuhito

doi:10.4011/shikizai.88.203

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有田焼上絵用の新規な環境調和型緑色顔料
Novel Environment-friendly Green Pigments for Over-glazed Decoration of Arita Ware
Novel enrvironment-friendly green pigments for over-glaze decoration of Arita ware

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Abstract

Environmental-friendly inorganic green pigments based on (Y_0.9R_0.1)₂BaCuO₅ (R = Sm³⁺, Gd³⁺, Yb³⁺, and Lu³⁺) solid solutions were synthesized and the dopant element was optimized to give the most greenish color. Among the samples, it was found that Lu-doped sample showed brilliant green hue. In response to the results, (Y₁₋_xLu_x)₂BaCuO₅ (0 ≤ x ≤ 0.3) pigments were further synthesized and their color properties were characterized in an attempt to find a new environmentally friendly pigment that has more sufficient green chromaticity. Among the samples, the most vivid green hue was obtained for (Y_0.9Lu_0.1)₂BaCuO₅ with a greenness value (−a*) of 48.6 in the CIE L*a*b* system, which was significantly larger than those of commercially available Cr₂O₃ (−a* = 18.2) and CoO∙ZnO (−a* = 25.3) pigments. The Y₂BaCuO₅ and (Y_0.9Lu_0.1)₂BaCuO₅ pigments were used in paints for porcelain. The green colors of the overglazed decoration panels were brilliant. Therefore, these pigments could be the potential candidates for novel green pigments of over-glazed decoration of Arita ware.

Journal

Journal of the Japan Society of Colour Material

Journal of the Japan Society of Colour Material 88 (7), 203-207, 2015

Japan Society of Colour Material

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