CHEN Yaocheng ZHANG Zhigong
Abstract: From the results of study, it was found that : The using amount of raw materials were kaolin 10-25% and porcelain stone 90-75% for the blue and white porcelain bodie;in Yuan and Ming Dynasties, and were kaolin 30-60% and porcelain stone 70-40% in Qing Dynasty. For the blue and white porcelain glazes, their raw materials were glaze stone and glaze ash in successive dynasties. It was little that the relationship bettween their changes of composition and era. To the samples of emperor kiln, the using amount of glaze ash was related to thickness of body. As a rule, porcelain glazes of thick body contained high amount of glaze ash (9-16%), that of medium thickness body contained a medium amount of glaze ash (7-13%), that of thin body ntained a small amount of glaze ash (1-10%).
Keywords: raw materials, white porcelain bodie