EDXRFS Analysis of Chinawares from the Jun Kiln in Jin and Yuan Dynasties

EDXRFS was applied to the study of composition of body and glaze of 16 samples of chinawares produced from the Jun Kiln in the era of Jin and Yuan dynasties. The composition of the body was shown to bear the characteristic of high alumina and low silica contents of northern chinawares, while the glaze was found to have the composition of CaO-K2O-SiO2-Al2O3 system. In addition, close similarities in compositions of the body and glaze were found between the chinawares produced from the Jun kilns of the Jin and Yuan dynasties and of the North Song synasty. As shown in the scattergram of factor analysis, the difference in compositions of samples from Jun kiln of the Jin and Yuan dynasties was very significant, while the difference in compositions of samples from the official Jun kiln of North Song dynasty was very small. There was the relationship of inheritance and development of technologies between Jun kiln of Jin and Yuan dynasties and Jun kiln run by local people in North Song dynasty; and the control and monitoring of raw materials, directions and technologies in the production of chinaware of Jun kiln in the Jin and Yuan dynasties were found less strict than in North Song dynasty, which revealed that the production of Jun kiln in Jin and Yuan dynasty was coming to a declining period.