Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Effect of V-doping on Colour and Crystallization of Malayaite Pigments

V의 고용이 Malayaite의 결정 및 발색에 미치는 영향

  • Joo, In-Don (Department of Material Science & Engineering, Myongji University) ;
  • Lee, Byung-Ha (Department of Material Science & Engineering, Myongji University)
  • 주인돈 (명지대학교 신소재공학과) ;
  • 이병하 (명지대학교 신소재공학과)
  • Received : 2010.06.04
  • Accepted : 2010.06.08
  • Published : 2010.07.31
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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

References

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