Corrosion mechanism of ceramic glaze from the Yangtze EstuaryⅡ  

作　　者：YU WenDi ZHAO Luo ZHAI Yang ZHAO Jing ZHANG KeXin GE Yan LI Qiang ZHAO Meng HUANG JiZhong LUO HongJie 

机构地区：[1]Shanghai Institute of Ceramics,Chinese Academy of Sciences,Shanghai 200050,China [2]Shanghai Cultural Heritage Conservation and Research Centre,Shanghai 200031,China [3]Shanghai Museum,Shanghai 200003,China [4]Institute for the Conservation of Cultural Heritage,Shanghai University,Shanghai 200444,China

出　　处：《Science China(Technological Sciences)》2023年第8期2246-2257,共12页中国科学（技术科学英文版）

基　　金：supported by the Natural Science Foundation of Shanghai in China(Grant Nos.23ZR1421000&20ZR1422800);the Key Program of the National Natural Science Foundation of China(Grant No.51732008)。

摘　　要：Ancient lead-glazed ceramics frequently corrode physically,chemically,and biologically when buried in soil,submerged in water,or exposed to air.In comparison to the other two environments,relatively little research has been conducted on how leadglazed ceramics deteriorate in the water environment.Four lead-glazed ceramic samples from the Yangtze EstuaryⅡwere examined for their micromorphology and structural composition using scanning electron microscopy-energy spectrum analysis,micro-area X-ray diffraction analysis,fluorescence microanalysis,and Fourier infrared spectroscopy analysis.The results demonstrate the formation of deposits of PbCO_(3),Pb(OH)Cl,and Cu FeS_(2)and corrosion pits and fractures on the glaze layer surfaces.According to the corrosion phenomenon,the lead glaze layers of ceramics mainly underwent chemical and microbial corrosion in water,and the corrosion process of the lead glaze was expounded and modeled.The research results deepen the understanding of the corrosion mechanism of lead-glazed ceramics,which is of great significance for the study of the conservation of lead-glazed ceramics and other types of ceramic relics and can also provide a reference for the long-term preservation of contemporary silicate products.

关 键 词：Yangtze Estuary II underwater ceramics lead glaze corrosion mechanism 

分 类 号：TQ174.43[化学工程—陶瓷工业]