湖北省鄂州出土黄铜钱币的腐蚀产物及机理分析

腐蚀学报（英文）, 2010, 22(3): 234-237.

湖北省鄂州出土黄铜钱币的腐蚀产物及机理分析

1.1. 中国科学技术大学科技史与科技考古系,合肥 2300262. 陕西师范大学,西安 7100623. 湖北省鄂州市博物馆,鄂州 4360014. 佛山市博物馆,佛山 528000>

1.1. Laboratory of Archaeometry,University of Science and Technology of China,Hefei 2300262. Shanxi Normal University,Xi&prime

an,710062 3. Ezhou Museum of Hubei Province,Ezhou 4360014. Foshan Museum,Foshan 528000>

基金项目: 中国科学院知识创新工程项目（KJCX3.SYW.N12)

关键词：黄铜钱币 , corrosion , wormhole corrosion , Zn₃Cu₂(OH)₆(CO₃)₂ , burial environment

Corrosion Products and Its Mechanism Analysis on Sereval Brass Coins Excavsted from Ezhou of Hubei Province

XIA Dong-qing , QIN Ying , MAO Zheng-wei , JIN Pu-jun , DONG Ya-wei

Keywords： brass coin , 腐蚀产物 , “蛀虫式”腐蚀 , 绿铜锌矿 , 埋藏环境

用X射线衍射(XRD)、X射线荧光(XRF)等手段对湖北鄂州博物馆馆藏当地出土的数枚锈蚀明显的清代黄铜钱币进行了检测分析.结果表明,腐蚀产物中有绿铜锌矿(Zn₃Cu₂(OH)₆(CO₃)₂),还有红锌矿(ZnO)、铜盐(CuCl)、黑铜矿(CuO)等,结合当地土壤理化性质及相关文献讨论了这些产物及“蛀虫式”腐蚀形成的原因.

XRD and XRF were used to identify the corrosion products on several brass coins of Qing dynasty collected in the Ezhou museum,excavated from Ezhou of Hubei province.Zn₃Cu₂(OH)₆(CO₃)₂ was found in the corrosion products for the first time,besides CuO、ZnO、Fe₂O₃ and CuCl were also found.Futhermore,the relevant mechanism of the observed“wormhole like corrosion” on the coins was discussed in terms of the physical and chemical characters of the local soil.

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