几件青铜器的科学分析和修复

Analysis and restoration of several pieces of bronze relics

为对几件出土的青铜剑、青铜器和弯形器进行保护研究 ,用X射线探伤、X射线衍射、金相显微镜、扫描电镜和原子吸收光谱等方法对器物的形貌、成分及制作技术进行了分析。分析结果表明青铜剑 0 12 5的剑格和茎部锈层下有合范痕迹一些铸造小缺陷 ;弯形器腐蚀形态为均匀性腐蚀 ,枝晶间腐蚀和活性腐蚀 ;0 10 8表面有合金层和褶皱 ,合范痕迹 ;0 10 1、0 10 2断面没有任何锈蚀及金属疲劳痕迹。器物经用不同方法清洗、铝箔局部还原处理、倍半碳酸钠浸泡和BTA缓蚀处理后 ,在相对湿度 95 %的环境中一周 ,没有发现新的锈蚀出现 ,达到良好的保护效果。表明科学分析方法在文物保护和修复中是非常有用的 ,同时还可以获得关于考古学和历史学的很多信息。

Several pieces of antiquities such as sword, mirror etc were analysed by scientific methods for conservation purpose. The methods used were X-ray photography, metallurgical microscopy, XRD, SEM, AES. The results have shown much information about the composition, microstructure and fabrication method of the antiquities. This not only helps to the conservation, but are also important to archaeological and historical research.