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http://dx.doi.org/10.4191/KCERS.2010.47.4.302

Effect of V-doping on Colour and Crystallization of Malayaite Pigments  

Joo, In-Don (Department of Material Science & Engineering, Myongji University)
Lee, Byung-Ha (Department of Material Science & Engineering, Myongji University)
Publication Information
Journal of the Korean Ceramic Society / v.47, no.4, 2010 , pp. 302-307 More about this Journal
Abstract
This study aims to synthesize emerald-green malayaite pigments using $CaCO_3$, $SiO_2$, $SnO_2$ and $V_2O_5$. For this purpose, the optimum composition is $CaV_{0.25}Sn_{0.687}SiO_5$ and heating condition is at $1250^{\circ}C$ for 6 h of soaking time. The samples were characterized by X-ray diffraction (XRD), the Fourier Transform Infrared Spectrometers(FT-IR), the Raman Spectrometer, Scanning Electron Microscope(SEM) and the UV/Vis spectroscopy. The substituted V ion for Sn was observed to be quadrivalence. The analytical results of the synthesized pigment showed the tetragonal crystal, a typical form of Malayaite, and the particle size to be approximately $5{\sim}10\;{\mu}m$. The color in lime glaze added 12 wt% pigment was emerald green, and CIE Lab parameters are $L^*=67.73$, $a^*=-12.39$ and $b^*=9.28$.
Keywords
Malayaite; Cassiterite; Vanadium oxide; Pigments; Emerald-green;
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Times Cited By KSCI : 2  (Citation Analysis)
Times Cited By SCOPUS : 0
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