Corrosion mechanisms for lead-barium glass from the Warring States period

• Published in: Heritage science Vol. 11; no. 1; pp. 79 - 12
• Main Authors: Zhang, Kexin, Wang, Jun, Yu, Wendi, Zhao, Jing, Yue, Xuezheng, Luo, Hongjie
• Format: Journal Article
• Language: English
• Published: Cham Springer International Publishing 20.04.2023; Springer Nature B.V; SpringerOpen
• Subjects: Bacterial corrosion; Barium; Calcium phosphates; Chemistry and Materials Science; Corrosion mechanisms; Corrosion model; Corrosion products; Crack corrosion; Fourier transforms; Historical structures; Infrared spectroscopy; Lead-barium glass; Materials Science; Microbial corrosion; Microscopy; Morphology; Optical microscopy; Surface chemical corrosion; X-ray fluorescence; Microbial corrosion; Corrosion model; Lead-barium glass; Crack corrosion; Surface chemical corrosion
• ISSN: 2050-7445; 2050-7445
• DOI: 10.1186/s40494-023-00930-7

Lead-barium glass is subject to a variety of corrosion reactions after burial. The microscopic morphology and compositional structure of ancient lead-barium glass excavated from the Yaozhuang Cemetery located in Liuhe District of Nanjing were analysed with optical microscopy, X-ray fluorescence spectrometry, scanning electron microscopy equipped with energy dispersive X-ray spectroscopy, X-ray diffraction, fluorescent inverted microscopy and attenuated total reflectance-Fourier transform infrared spectroscopy. The corrosion products included PbCO 3 , Pb(OH)Cl, CaHPO 4 (H 2 O) 2 and BaS 2 . Based on the corrosion morphology and the corrosion products, it was concluded that the corrosion processes included microbial corrosion, surface chemical corrosion, and crack corrosion. This paper describes the corrosion processes of lead-barium glass relics and establishes the corresponding corrosion model. In addition, the results of this study deepen the understanding of the corrosion mechanisms for lead-barium glass and provide new insight into the corrosion mechanisms of excavated glass relics, which is also of great significance for the protection of lead-barium glass.