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Detailed Program
Paper Number : CE-O02
Time Frame : 16:05~16:20
Presentation Date : Friday, 28, November
Session Name : Ceramics Culture and Education
Session Chair 1# : Woo-Seok Cho
Session Chair 2# : Toyohiko Sugiyama
Comparative Study on the Celadon Color Spectrum between Goryeo and China
Hyunggoo No
Korea Institute of Ceramic Engineering and Technology
Keywords: Celadon, Glaze, Chemistry, UMF, Color


Goryeo celadon influenced by the Yue ware of 9th century in China is found with similarities in its styles, glaze colors, and manufacture process. In this study chromaticity and chemistry analyses were performed on the 11 shards from Longquan kiln sites in China, and 7 shards from Gangjin and 12 shards from Buan in South Korea for comparison. Glazes of both Korean and Chinese celadons were basically limestone glaze, and composed with potash feldspar as alkali material. SiO2 content was higher for Chinese celadon than for Goryeo celadon. The chemical compositions of celadon glaze and body were converted based on the UMF approach. According to the results, the value of RO2/R2O3 in glaze was higher for Chinese celadon than for Goryeo celadon, and increased proportionally. The range of RO2 and RO+R2O in body was lower for Chinese celadon than for Goryeo celadon, and increased proportionally. The color of celadon was strongly influenced by the concentration of coloring oxides (Fe2O3, TiO2). CIEa* value was negatively increased with Fe2O3 for both celadons while it was positively increased with TiO2. This seems to be the result of high-temperature reduction firing. Chinese celadons presented relatively considerable variation in the color. Chinese celadons were generally distributed among grayish dull G, GY, and Y colors while Goryeo celadons were distributed among grayish dull GY colors. The CIEb* value of Chinese celadon was higher compared to that of Goryeo celadon. Gangjin and Buan celadons exhibited the same grayish dull GY colors, but the CIEa* value was higher for Buan celadons.

References:

[1] Min Su Han, A Scienticfic Provenance Study for Goryeo Celadon Excavated from Seabed,
Chung-Ang University(2006).
[2] Kyung Sin Goh, Researdch for Re-creation and Further Development of the Korean Traditional Ceramics Technology, Chung-Ang University(2000).
Acknowledgements :