TAN Xunyan

(Jingdezhen Ceramic Institute, Jingdezhen Jiangxi 333000, China)

Abstract:Using kaolin clay, feldspar, quartz and limestone or calcite (usually used in ceramic industry) as main raw materials, a novel copper-red glaze was developed by three-component batching and single factor testing. The effects of technological conditions including the ratio of raw materials, glaze thickness and firing atmosphere on the glaze color were investigated.The results show that the optimal conditions are: the basic glaze recipe is composed of 30% of feldspar, 20% of limestone and 10% of dolomite; the glaze thickness is 1.5 ~ 2 mm; the firing atmosphere is reduction.

Key words:copper-red glaze; ingredients of basic glaze; glaze thickness; firing atmosphere