Laser Irradiation Effects on Metallic Zinc and Its Corrosion Products
Journal of Cultural Heritage 2023
Denis Prokuratov, Andrey Samokhvalov, Dmitry Pankin, Oleg Vereshchagin, Nikolai Kurganov, Anastasia Povolotckaia, Alexander Shimko, Alexandra Mikhailova, Roman Balmashnov, Olga Smolyanskaya, Dmitrii Redka, Toms Salgals, Vjačeslavs Bobrovs

In this work lasers with pulse durations from μs to fs were used to clean zinc heritage objects from atmospheric corrosion deposits. Wavelengths at 355, 532, 800, 1064 nm were tested. The surface was studied by Raman spectroscopy, Scanning electron microscopy, X-ray diffraction and optical microscopy. It was shown that for all lasers used there is no self-limiting cleaning effect, and the metal melting threshold is lower than the corrosion complete removal threshold. A femtosecond laser produces the least surface melting with 100 fs pulse duration, the shortest in this study. Yellowing of corrosion layers due to temperature modification of zincite was observed with irradiation by all lasers used.

Atslēgas vārdi
Atmospheric corrosion | Laser cleaning | Zinc

Prokuratov, D., Samokhvalov, A., Pankin, D., Vereshchagin, O., Kurganov, N., Povolotckaia, A., Shimko, A., Mikhailova, A., Balmashnov, R., Smolyanskaya, O., Redka, D., Salgals, T., Bobrovs, V. Laser Irradiation Effects on Metallic Zinc and Its Corrosion Products. Journal of Cultural Heritage, 2023, Vol. 61, 13.-22.lpp. ISSN 1296-2074. Pieejams: doi:10.1016/j.culher.2023.02.003

Publikācijas valoda
English (en)
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