汝官瓷和钧官瓷的主成分鉴别

为了解多种釉色汝官瓷和钧官瓷的原料来源、成分和分类关系,正确鉴别两窑瓷器,选取汝官瓷样品34个、钧官瓷样品50个,由质子激发X射线荧光分析测定了样品的化学组分.将所有样品的7种主成分数据进行统计分析,得到以下分析结果:汝官瓷胎的Al2O3平均含量明显高于钧官瓷胎的,而CaO,TiO2的平均含量比钧官瓷胎的略高;汝官瓷胎的SiO2,Fe2O3,K2O平均含量明显低于钧官瓷胎的,而MnO平均含量比钧官瓷胎的稍低.汝官瓷釉的Al2O3,CaO平均含量明显高于钧官瓷釉的,而K2O,MnO的平均含量比钧官瓷釉的略高;汝官瓷釉的SiO2平均含量明显低于钧官瓷釉的,而TiO2,Fe2O3平均含量比钧官瓷釉的稍低,即汝官瓷釉和钧官瓷釉的主成分平均值是不相同的.模糊聚类分析表明:多数汝官瓷胎、钧官瓷胎样品的原料产地和成分接近但有所不同,汝官瓷釉和钧官瓷釉的原料产地和配方则明显不同.从主量化学组成上可以较好的区分汝官瓷釉和钧官瓷釉样品.

DISCRIMINATION OF MAJOR COMPOSITIONS OF RU GUAN PORCELAIN AND JUN GUAN PORCELAIN

Thirty-four samples of Ru Guan porcelain and fifty samples of Jun Guan porcelain (both kinds being in different glaze colors) were selected to study the sources of raw materials, ingredients and their classification relationships. Proton-induced X-ray emission was applied to determine their chemical elements. The data of seven major chemical compositions collected from these samples were further analyzed. Results indicate that the average content of Al2O3 in the Ru Guan porcelain bodies is apparently greater than that contained in the Jun Guan porcelain bodies, and the average content of CaO and TiO2 is slightly greater than that in Jun Guan porcelain bodies. The average content of SiO2, K2O and Fe2O3 in Ru Guan porcelain is clearly lower than that contained in Jun Guan porcelain bodies, while the average content of MnO is slightly lower than that contained in Jun Guan porcelain bodies. The average content of Al2O3 and CaO in Ru Guan porcelain glaze is apparently greater than that contained in the Jun Guan porcelain glaze, and the average content of K2O and MnO is slightly greater than that contained in the Jun Guan porcelain glaze. The average content of SiO2 in the Ru Guan porcelain glaze is clearly lower than that contained in Jun Guan porcelain glaze, while the average content of Fe2O3 and TiO2 is slightly lower than that contained in Jun Guan porcelain glaze. Fuzzy cluster analysis indicates that the places of origin of the raw materials and elements of the majority of the Ru Guan and Jun Guan porcelain body samples have some-thing in common, but some differences do still exist. The places of origin of the raw materials and components of the Ru Guan porce-lain glazes differ significantly from those of the Jun Guan porcelain glazes. Therefore, the Ru Guan porcelain glaze samples and the Jun Guan porcelain glaze samples can be differentiated from their major elements.