Study on Co-KZr2(PO4)3-Type Crystalline Purple Ceramic Pigments

Abstract:

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Using potassium carbonate, ammonium phosphate, zirconium dioxide, and cobalt oxide as raw materials, a kind of potassium zirconium phosphate ceramic pigments with bright purple color at high temperature were obtained through a series of optimizing experiments. It’s a novel type of ceramic pigments with chromaticity indexes of L*=55.37, a*=18.52, and b*=-30.56. X-ray diffraction (XRD), TG-DTA and chroma analysis were employed to characterize the pigments. The results reveal that potassium zirconium phosphate type ceramic pigments presenting bright purple color is due to Co2+ partially replace Zr4+ in potassium zirconium phosphate crystal lattice, which leads to the lattice distortion because of the formation of Zr2-xCo2x(PO4)3 phase. Moreover, owing to the limitation of solubility of Co2+ in potassium zirconium phosphate crystal lattice, the contents of cobalt oxide added may not be too much.

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Periodical:

Edited by:

Shengyi Li, Yingchun Liu, Rongbo Zhu, Hongguang Li, Wensi Ding

Pages:

790-794

DOI:

10.4028/www.scientific.net/AMM.34-35.790

Citation:

X. Y. Gu et al., "Study on Co-KZr2(PO4)3-Type Crystalline Purple Ceramic Pigments", Applied Mechanics and Materials, Vols. 34-35, pp. 790-794, 2010

Online since:

October 2010

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Price:

$35.00

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