九连墩楚墓青铜器铅锡焊料的耐腐蚀机理  

CORROSION RESISTANT MECHANISM OF LEAD-TIN BASED ALLOY CULTURAL RELICS OF WARRING STATES IN HUBEI PROVINCE

作　　者：金普军[1] 秦颍[1] 龚明[2] 李涛[1] 朱铁权[1] 胡雅丽[3] 王昌燧[4] 

机构地区：[1]中国科学技术大学科技史与科技考古系,合肥230026 [2]中国科学技术大学工程科学学院,合肥230026 [3]湖北省博物馆,武汉430060 [4]中国科学院研究生院人文学院,北京100049

出　　处：《中国腐蚀与防护学报》2007年第3期162-166,共5页Journal of Chinese Society For Corrosion and Protection

基　　金：中国科学院知识创新工程项目(第三期)(KJCX3.SYW.N12)

摘　　要：用能谱、X射线衍射、X射线荧光光谱和金相等分析手段,研究九连墩楚墓出土的战国青铜文物的铅锡焊料的基体和锈蚀产物,发现产物致密、均匀,主要由PbCO3、Pb和SnO2组成.整个埋藏环境相对密闭,总体呈中性,HCO3-浓度较高.这些因素共同作用,减缓了铅锡焊料的腐蚀,使大部分青铜器完好地保存了下来.The alloys and corrosive products of the Pb - Sn alloy solders, existing in bronzes excavated from Jiuliandu site during Warring States Period, were analyzed by using techniques of energy spectrum, X - ray powder diffraction, X - ray fluorescence spectrometry and metallurgical analysis, etc. The analysis indicated that corrosive products that were composed of PbCO3, Pb and SnO2 were compact and firm, and the buried circumstance, with the neutral pH and the high content of HCO^- 3, was relatively isolated,which had cooperated to hinder the corrosion of Pb - Sn solders to keep bronzes in good figure.

关 键 词：金属文物 土壤腐蚀 铅锡焊料 青铜器 

分 类 号：TU471.4[建筑科学—结构工程]