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对广西、云南、贵州各地珍藏的66面古代铜鼓碎片的锈蚀进行了显微镜观察,发现绝大多数铜鼓表面锈层薄而致密,锈蚀产物主要是氧化物。锈蚀的程度与已观察到的我国其它地区出土的青铜器相比是较低的。在几种类型铜鼓的组织中发现有“自由铜”的颗粒,它是青铜锈蚀过程中的一种产物。研究表明:不同时代、不同类型的铜鼓锈蚀情况存在着一定的差异,这是与铜鼓的成分、显微组织、铜鼓的厚度以及环境条件密切相关的。
The corrosion of the 66 ancient bronze drum fragments collected in Guangxi, Yunnan and Guizhou provinces was observed microscopically. It was found that most of the bronze drum surface rust was thin and dense, and the rust products were mainly oxides. The extent of corrosion is lower than the bronze wares that have been observed in other areas of our country. Found in several types of copper drum organization “free copper ” particles, it is a bronze corrosion process of a product. The research shows that there are some differences between different types of copper drum corrosion in different ages, which are closely related to the composition, microstructure, copper drum thickness and environmental conditions.