我国传统瓷器早期发展过程中，烧制工艺在原料选择、烧成温度和施釉技术等方面取得巨大进步，产品质量逐步提高，技术的不断积累为成熟青瓷的出现奠定了基础。但目前人们对这一演进过程中的许多问题仍存在争议，特别是如何科学评价陶瓷产品质量问题，它对客观认识我国陶瓷早期发展历史具有重要意义。本项目以胎体物相构成为主要指标评估早期陶瓷器胎体质量，计划系统性地收集浙江地区陶器、印纹硬陶、原始瓷和成熟瓷器作为研究对象，讨论它们在胎体物相构成方面的区别与联系。实验方法上，采用高分辨率X射线粉末衍射方法分析胎体物相构成信息，考虑到实验的操作性及数据的准确性，利用同步辐射X射线光源的独特优势，通过Rietveld全谱拟合方法深入挖掘样品结构信息，定量分析非晶态石英和莫来石等结构，综合物相结构、化学组成、烧成温度、孔隙率和显微结构等信息，建立科学的胎体质量评价体系，为我国陶瓷早期发展历史研究提供新的思路和观点。

During the early development of traditional ceramic in China, the pottery technology made great progress in the selection of raw materials, firing and glazing. The quality of ceramic product has been gradually improved, and the technology accumulation has laid a foundation for the emergence of mature celadon. However, there are still many controversies in the process of evolution, especially how to scientifically evaluate the quality of ceramic products, which is of great significance to how to understand the early development history of ceramics in China. In this project, the quality of the early ceramic body was evaluated by using the phase composition as the primary indicator. We aim to systematically collect the pottery, stamped stoneware, proto porcelain and mature celadon from Zhejiang Province as analysis object of this project, and discuss distinction and contact in phase composition between them. On the experimental method, the high resolution X-ray powder diffraction method will be used to analyze the phase composition of the bodies. Considering the operability of the experiment and the accuracy of the analysis, we want to take full advantage of the synchrotron radiation X-ray source. We apply the Rietveld method as a tool to obtain the phase structure information of sample and quantify the proportion of amorphous state and mullite. Comprehensively considering phase structure, chemical composition, firing temperature, porosity and microstructure, we expect to establish a scientific method to evaluate the quality of ceramic body. We hope it would provide new research perspectives for study of early development history of Chinese ceramic.