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根据青铜器文物的腐蚀特征,选择八个典型的青铜器残片研究试样。采用扫描电镜能谱分析和X射线衍射研究,了解青铜文物的成分及物相结构,探讨三星堆青铜器的腐蚀机理。结果表明,青铜样品中主要成分为Cu、Sn、Pb、O;主要物相为铜锡合金、磷铜矿[Cu_(2+2)(PO_4)(OH)]、锡石(SnO_2)和少量赤铜矿(Cu_2O),并检测到有害锈——氯化亚铜(CuCl),为三星堆青铜文物的保护提供了理论依据。
According to the corrosion characteristics of bronze artifacts, eight typical bronze fragments were selected for the study sample. Using scanning electron microscopy (EDS) and X-ray diffraction (XRD), the composition and phase structure of the bronze cultural relics were studied, and the corrosion mechanism of the bronze was explored. The results show that the main constituents of bronze samples are Cu, Sn, Pb and O; the main phases are copper-tin alloy, Cu 2 + 2 (PO 4) (OH), cassiterite (SnO 2) Red copper (Cu_2O), and the detection of harmful rust - cuprous chloride (CuCl), provided a theoretical basis for the protection of the Sanxingdui bronze cultural relics.