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http://dx.doi.org/10.4191/kcers.2017.54.1.04

Chromatic Characteristics of Copper Glaze as a Function of Copper Oxide Addition and Sintering Atmosphere  

No, Hyunggoo (Ceramicware Center, Korea Institute of Ceramic Engineering and Technology)
Kim, Soomin (Ceramicware Center, Korea Institute of Ceramic Engineering and Technology)
Kim, Ungsoo (Ceramicware Center, Korea Institute of Ceramic Engineering and Technology)
Cho, Wooseok (Ceramicware Center, Korea Institute of Ceramic Engineering and Technology)
Publication Information
Journal of the Korean Ceramic Society / v.54, no.1, 2017 , pp. 61-65 More about this Journal
Abstract
Examined in this study were the effects of copper oxide (II) addition and sintering conditions on the chromatic characteristics of copper glaze. Oxidatively sintered samples exhibited the negative increase of $CIEa^*$ and the positive increase of $CIEb^*$ with the increase of CuO concentration, leading to Green and Green-Yellow coloration. On the other hand, $CIEa^*$ and $CIEb^*$ of reductively sintered samples were positively increased in direct proportion. The green color of oxidatively sintered samples was originated from the $Cu^{2+}$ ions formed by the dissolution of CuO. The reductively sintered samples resulted in dull tone red color with low chroma. Such behavior seems to be influenced by the interplay of metal Cu aggregation, metal Cu globule, and $Cu_2O$ formed in the glaze layer through the redox interaction of CuO during the sintering process.
Keywords
Raw material; Glaze; Copper Oxide; Color; Mechanism;
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Times Cited By KSCI : 1  (Citation Analysis)
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