CHEN Yaocheng¹ ZHANG Fukang¹ REN Shilong² SHEN Yucming² JI Zhiyao³

(1.Shanghai Institute of Ceramics, Chinese Academy of Sciences)

(2.Reserch Institute of Archaeolagy,Zhejiang Province)

(3.Quzhou Museum, Zhejiang Province)

Abstract: In this articlc,some sherds of Quzhou celdon with color painting were studied.Based on the chemical composition ,physical properties and microstructures of bodies and glazes, some new results were obtained.

    1.The chemical composition of the bodies of Quzhou celdon arc characterized by high SiO₂,high K₂0 and low Al₂0₃. The firing temperature of Quzhou celadons was about 1200℃. 

    2.Two types of chemical composition of glazes were found: (a) high calcium glaze (Ca0:13~ 14.5%);(b)low calcium glaze (Ca0:2.2~4.8%).The K₂O+Na₂0 content (2.9~ 4.3 %) and Al₂0₃ / Si0₂ ratio (0.21 ~ 0.27)of the two types are quite similar.

    3.In order to increase whiteness,engobe was applied to the wares between greyish black body and glaze.

    4.Two types of color painting were found: (a) high-fired overglaze color; (b) underglaze color. The color of design was brown, brownish black, brownish red and iron-red etc ..

Key words: ancient porcelain, color painting, ovcrglaze color, underglaze color