气候因素对青铜文物模拟材料大气腐蚀的影响  

Effects of Climate Factors on Atmospheric Corrosion of Bronze Simulation Materials

作　　者：方柳静 闫莹[1] 周浩[2] 吴来明[2] 姚瑨 蔡兰坤[1] 

机构地区：[1]华东理工大学资源与环境工程学院,上海200237 [2]上海博物馆馆藏文物保存环境国家文物局重点科研基地,上海200050

出　　处：《华东理工大学学报（自然科学版）》2015年第4期489-494,550,共7页Journal of East China University of Science and Technology

基　　金：上海市科委科研计划重点支撑项目(13231203000);国家自然科学基金(51101058)

摘　　要：运用QCM反应性监测方法研究了暴露在博物馆模拟展柜中的青铜文物模拟材料的腐蚀行为及规律,并利用扫描电镜(SEM)、能谱仪(EDS)以及光电子能谱(XPS)分析手段,对青铜文物模拟材料在腐蚀60d后的腐蚀形貌与产物进行了分析。结果表明:光照的存在以及温度、湿度的升高都会加速青铜文物模拟材料的腐蚀,其中ERCO LED灯在色温为4 000K时对青铜文物模拟材料的腐蚀影响最严重,在腐蚀60d后的主要腐蚀产物为Cu2O、CuO、SnO、SnO2,还有少量铜的碳酸盐、铜的硫酸盐与铜的硫化物、铜的硝酸盐与亚硝酸盐、铜的氯化物。The atmospheric corrosion behavior and law of bronze simulation materials exposed to museum simulation showcase were in situ monitored by quartz crystal microbalance （QCM）. The corrosion products formed on surface of bronze simulation materials after 60 d were investigated by means of scanning electron microscope （SEM）, energy dispersive spectrometer （EDS） and X-ray photoelectron spectroscopy （XPS）. The results showed that adding light, increasing humidity and temperature accelerated the corrosion of bronze. The most serious corrosion of quartz crystal was achieved when exposed to ERCO LED 4 000 K. After exposed to different lights for 60 d, the main corrosion products were Cu2O, CuO, SnO, SnO2 and the secondary corrosion products were copper carbonate, copper sulfate and copper sulfide, copper nitrate, copper nitrite and copper chloride.

关 键 词：青铜 光照 大气腐蚀 石英晶体微天平 

分 类 号：TG172[金属学及工艺—金属表面处理] TG174[金属学及工艺—金属学]