云南古青铜矛防腐层的电子探针研究

Study on Anticorrosion by EPMA in Ancient Bronze Lance of Yunnan

本文对云南楚雄地区春秋战国时期的一柄防腐较好的青铜矛进行了研究 ,研究发现 ,青铜矛基体的主要成分是铜和锡 ,其含锡量高达 30 .3%;青铜矛表面防腐层的主要成分是 Sn O2 ,高达 83%。研究结果表明 ,Sn O2 具有较好的防腐能力。

The component of the protected layers from corrosion of a slick bronze lance of spring & autumn period and warring states period from Chuxiong was examined by EPMA.The results show that the primary elements in the bronze lance are Cu and Sn,also containing and the concentration of Sn is upto 30.3% (by weight).There is an anticorrosion!layer on the surface of lance.Where the concentration of SnO 2 is upto 83% (by weight).