| 청자 유약 발색메카니즘에 대한 뫼스바우어 분광법에 의한 연구 |
| 김종영, 노형구, 전아영, 김응수, 조우석, 김경자, 김진모1, 김철성1 |
한국세라믹기술원 이천분원
1국민대학교 물리학과 |
| Mossbauer Spectroscopic Study on Colorative Mechanism of Celadon Glaze |
| Jong-Young Kim, Hyung-Goo No, A-Young Jeon, Ung-Soo Kim, Woo-Seok Cho, Kyung-Ja Kim, Chin-Mo Kim1, Chul-Sung Kim1 |
Icheon Branch, Korea Institute of Ceramic Engineering and Technology
1Department of Physics, Kookmin University |
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| ABSTRACT |
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Systematic study on relationship between celadon coloring and glaze component was conducted by chromaticity analysis and M$ddot{o}$ssbauer spectroscopic analysis. The chromaticity ($L^*$, $a^*$, $b^*$ values) and M$ddot{o}$ssbauer analysis results were correlated to the amount of $Fe_2O_3$, $TiO_2$, MnO, and $P_2O_5$, which are the essential factors influencing celadon coloring. According to chromaticity analysis, celadon glaze color belongs to GY group when the addition of $TiO_2$ was 1.4%, whereas the color belongs to BG group when the addition of $TiO_2$ was 0.1%. For the GY group, the colors change from GY to YR with the decrease of brightness as the addition of $TiO_2$, MnO, and $P_2O_5$ increases. According to M$ddot{o}$ssbauer analysis results, as the amount of divalent iron ion increases, the $a^*$ and $b^*$ values decrease, on the other hand, $L^*$ value increases. The ratio of divalent iron ion produced in reductive sintering process is found to be 80~95% in this study, which induces the increase of $L^*$ values in celadon glaze. |
| Key words:
Celadon, M$\ddot{o}$ssbauer, Colorative |
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