| 산화티타늄이 청자유약의 발색에 끼치는 영향에 관한 연구 |
| 노형구, 김응수, 김종영, 조우석, 김철성1, 김진모1 |
한국세라믹기술원 이천분원
1국민대학교 물리학과 |
| Effect of TiO2 on the Color Generation in Celadon Glaze |
| Hyunggoo No, Ungsoo Kim, Jongyoung Kim, Wooseok Cho, Chulsung Kim1, Chinmo Kim1 |
Korea Institute of Ceramic Engineering & Technology
1Department of Physics, Kookmin University |
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| ABSTRACT |
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In aprevious study, the mutual interaction between $Fe_2O_3$ and $TiO_2$ was found to influence the color of celadon glaze. Celadon samples were prepared with varying concentrations of $TiO_2$ at a fixed level of $Fe_2O_3$. The electronic states of Fe and Ti were analyzed by M$ddot{o}$ssbauer spectroscopy and electron spin-resonance spectroscopy, respectively. These results were examined with the celadon colors measured according to CIELAB values. This study revealed that an increase of $Ti^{3+}$ in the glassy phase decreased the $Fe^{2+}/Fe^{3+}$ ratio, resulting in a color change of the celadon samples in the GY and Y groups. The maximum reflectance wavelength was shifted from 505 nm to 610 nm with an increase in the $TiO_2$ concentration. |
| Key words:
Celadon, Color, Iron oxide, Titanium dioxide, Reduction |
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