西汉古陶的穆斯堡尔研究

Mossbauer study of a Western-Han Dynasty pottery figure

对从中国徐州北洞山西汉楚王墓发掘出的古陶及北洞山粘土进行了X荧光、X射线衍射和穆斯堡尔谱研究,并对随葬陶俑的烧制工艺(包括焙烧气氛和原始最高焙烧温度)及制造产地作出推断。将陶俑重烧与粘土焙烧同步在还原气氛中不同温度点同时进行,并对粘土在该环境中的变化作了仔细分析。结果表明,灰陶俑是在稳定的还原环境下烧成的,原始最高烧结温度在900—950℃,其原始制造产地在北洞山附近。

A grey pottery figure manufactured in the Western- Han Dynasty and the clay gathered from the same site of Beidongshan near Xuzhou have been studied by X- ray diffraction, X- ray fluorescence and Mossbauer spectroscopy. They were simultaneously fired under the same conditions in different atmospheres at various temperatures. The information on original firing atmosphere and temperature as well as its provenance can be inferred from the method of pottery retiring and clay firing. The original firing temperatures deduced from both of them are in good self- agreement. It is found that the values of Mossbauer parameters for the unrefired pottery figure are approximately the same as those for the clay fired at 950℃ for five hours in a reduced atmosphere. The XRF analysis confirmed that the locality of this pottery figure was somewhere near Beidongshan.