摘要
采用石英晶体微天平(QCM)反应性监测方法,结合扫描电镜、能谱分析(SEM-EDS)和拉曼光谱表面分析技术,研究了暴露于不同SO_(2)含量、相对湿度和温度环境中的银质文物材料的腐蚀行为及其表面特征。结果表明:随着时间延长,暴露于不同环境中的镀银石英晶振片频率均有所下降,最终趋于稳定;SO_(2)气体会促进银的腐蚀,且腐蚀速率随其含量的增加而加快;环境温度和相对湿度的升高也会加剧SO_(2)对银的腐蚀作用;在含SO_(2)环境中,银表面生成了Ag_(2)O、Ag_(2)SO_(3)以及Ag_(2)SO_(4)等腐蚀产物。
The corrosion behavior and surface characteristics of silver artifact materials exposed to environments of different SO_(2) concentrations,relative humidity and temperatures were investigated using a quartz crystal microbalance(QCM)reactivity monitoring method combined with scanning electron microscopy,energy dispersive spectroscopy(SEM-EDS)and Raman spectroscopy surface analysis techniques.The results show that the frequency of silver-plated quartz crystals exposed to different environments decreased and eventually stabilized with the increase of time.SO_(2) gas could promote the corrosion of silver,and the corrosion rate increased with the increase of its content.The increase of temperature and relative humidity also aggravated the corrosion of SO_(2) on silver.In the SO_(2)-containing environment,corrosion products of Ag_(2)O,Ag_(2)SO_(3) and Ag_(2)SO_(4) were formed on the silver surface.
作者
董怡
闫莹
俞涛
周浩
吴来明
蔡兰坤
DONY Yi;YAN Ying;YU Tao;ZHOU Hao;WU Laiming;CAI Lankun(National Engineering Research Center of Industrial Wastewater Detoxication and Resource Recovery,East China University of Science and Technology,Shanghai 200237,China;Key Scientific Research Base of Museum Environment,State Administration for Cultural Heritage,Shanghai Museum,Shanghai 200050,China)
出处
《腐蚀与防护》
CAS
CSCD
北大核心
2024年第5期1-5,11,共6页
Corrosion & Protection
基金
国家重点研发计划(2020YFC1522502)。
