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利用微聚焦能量色散X射线荧光光谱仪(EDXRF)、拉曼光谱仪(RS)、X射线电子能谱仪(XPS)等无损分析法,对重庆忠县翠屏山崖墓出土金银器的基体成分、表面腐蚀物成分以及其物相结构进行了系统的分析测试。结果表明:两个金器样品的含金量均高达90%,纯度较高。此外,还含有一定含量的银、铜、锌、镍、铷等杂质元素;银器中,大多数样品含银量高达97.38~98.85%,同时还含有少量硫、铬、镍、锌、金等杂质元素;银器表面附着的黑色的腐蚀物,经鉴定为Ag2S,红褐色腐蚀物的物相结构为Cu2O;值得关注的是,有一个银器样品含银95.2%,含铜3.19%,应为铜银合金,此结果对于探讨我国古代银铜合金技术发展与演变的研究,具有非常重要的意义。
The matrix composition of the gold and silver ware excavated from the Cuiping Hill Cliff Tom in Zhong County of Chongqing was analyzed by non-destructive analysis such as micro-focus energy dispersive X-ray fluorescence (EDXRF), Raman spectroscopy (RS) and X-ray photoelectron spectroscopy (XPS) Surface corrosion components and their phase structure were systematically analyzed and tested. The results show that the gold content of the two gold samples are as high as 90% and the purity is high. In addition, a certain amount of silver, copper, zinc, nickel, rubidium and other impurity elements are contained; most of the samples in silverware contain as much as 97.38-98.85% of silver and a small amount of sulfur, chromium, nickel, zinc, gold, etc. Impurity elements; Silver surface attached to the black corrosion, identified as Ag2S, reddish brown corrosive phase structure of Cu2O; it is noteworthy that there is a sample of silver 95.2% silver, copper 3.19%, should For the copper-silver alloy, the results for the study of the development of ancient silver-copper alloy technology in China and the evolution of research is of great significance.