长沙窑铜红釉上彩的显微分析

长沙窑创烧于唐代,是隋唐时期外销瓷的大宗。已有研究认为,长沙窑在中国瓷器发展史上有两大突出贡献,其中之一便是最早在中国制瓷史上运用铜作呈色剂在高温中成功烧制出红釉和红彩等彩瓷。本文选取长沙窑铜红彩器作为研究对象,利用X荧光光谱分析、反射光谱、岩相分析和扫描电镜等手段对该样品釉彩部分进行了成分和显微结构分析。结果表明,该样品是一件乳浊釉上施红彩的釉上彩器,釉面的乳浊效果由大颗粒分相和析晶导致的米氏散射而造成。

Changsha kiln,located at Tongguan County in Hunan Province,China,is famous for exported porcelain and copper-red in Tang Dynasty （AD 618-AD 907）,which has made significant contributions to the development of ancient Chinese ceramics. In this paper, a shard of copper red decoration excavated at Changsha kiln was analyzed by using energy dispersive X-ray fluorescence （EDXRF）,reflectance spectrum,microscopy analysis and scanning electronic microscopy（SEM）. The results show the sample is an overglaze porcelain,and the large phase separation particles and crystallization lead to Mie scattering which makes the glaze present opaque. It is suggested that the sample analyzed is a kind of the copper-red overglaze with opaque glaze porcelain in China.