巩窑唐代早期白瓷的EDXRF线扫描分析

具有悠久瓷器生产历史的巩窑，是我国古代北方烧制白瓷的3个代表性窑口之一。在唐代早期，为了掩盖瓷胎表面的粗糙状态和较深的胎体颜色，提高瓷器的质量和白度，巩窑白瓷在胎的表面施加了一层装饰层——化妆土。用能量色散X射线探针技术对这些白瓷碎片的剖面进行了主要化学成分的线扫描分析，结果表明： 巩窑唐代早期白瓷的化妆土使用了不同的原料，与光学显微镜下观察到的现象相符合。另外，白瓷釉可能是加有草木灰的钙釉。

Line Scanning Analysis of White Porcelain from Gong Kiln in Early Tang Dynasty by Energy Disperse X-Ray Fluorescence

Gong kiln, for its long porcelain-firing history, was one of three representative white porcelain kilns in northern China. In order to improve the quality and whiteness of white porcelain, a decorating layer or cosmetic earth was laid on the body surface in Gong kiln during early Tang dynasty, which was able to blot out rough surface and weaken the influence of fuscous body upon surface color. In this paper the main chemical composition of the white porcelain's profile was analyzed by using energy disperse X-Ray fluorescence. The result showed that different materials were used as cosmetic earth during early Tang dynasty, in accordance with the phenomenon under optical microscope. In addition, the glaze belongs to calcium glaze in which plant ash was added.