刘家门钧窑瓷器胎釉成分的EDXRF分析

EDXRF STUDY ON THE COMPONENT OF BODY AND GLAZE OF PORCELAINS EXCAVATED FROM LIUJIAMEN JUN KILN

采用能量色散X射线荧光法,分析了河南省禹州市刘家门窑址出土钧瓷、青瓷的胎、釉成分,探讨了钧瓷与青瓷在胎、釉原料配方上的差异。分析表明,刘家门窑址出土的钧瓷和青瓷,它们的瓷胎具有相同的原料配方。与青瓷相比,钧瓷瓷釉的Al2O3含量较低,SiO2含量较高,但二者的助熔剂含量相近。钧瓷瓷釉的成分落在K2O-Na2O-CaO-MgO-Al2O3-SiO2系釉的分相区域,因而产生了异于普通青瓷的蓝色乳光效果。分析还发现,不同时期的钧窑瓷器,其主、次量元素含量变化甚微,这暗示在长期的烧制过程中,刘家门窑瓷器胎、釉的原料配方较为稳定。

The components of body and glaze of porcelains excavated from Liujiamen Jun Kiln site were studied by EDXRF. The difference on raw material and formulation of bady and glaze of Jun ware and celadon were discussed. The results showed that celadon and Jun ware excavated from Liujiamen Kiln had similar raw material and formulation in the body. The concentration of Al2O3 in the glaze of Jun ware was lower and the concentration of SiO2 was higher than that of celadon samples. But the concentrations of flux were quite similar. The concentration of glaze of Jun ware was located in the field of phase separation of K2O-Na2O-CaO-MgO-Al2O3-SiO2 glaze so as to show blue opalescence sense appearance different from celadon. The component of porcelain samples from Jun Kiln varied in a quite small range in different period showed that the raw material and formulation kept stable in the long producing history of Liujiamen Kiln.