青瓷釉色的成因及相关的鉴定原理

The cause of the celadon glaze color and related appraisal principle

一、早期青瓷釉色的化学特征1.现在看到的早期青瓷的釉色东汉青瓷和春秋至西汉原始瓷相比有了重大进步。吸水率只有0.3%,烧成温度约为1260-1310℃。东汉青瓷的产地主要在浙江宁绍平原、金华丘陵和永嘉沿海地区。而北方则是从北魏时起,黄堡镇瓷器就已具规模。这些早期青瓷瓷土含铁量比较高,采用石灰釉,釉料中含氧化钙达15%以上,釉层较薄。由图1-4可见,

Ferrous oxide and the following secondary oxidation atmosphere formed by 'chemical color', the other is split phase structure in the isolated phase particles into blue half wave scattering formed in the range of 'physical color'. The early celadon with chemical color is given priority to, in the late physical color is given priority to. Secondary oxidation feature provides a method of treasure of ancient ceramics authenticity; According to the correlation between chemical composition and smaller 'powder blue glaze, can discern the celadons. Secondary open patches of grain width of microscopic differences is another effective way to identification of ancient ceramics.