Investigation towards Laser Cleaning of Corrosion Products from Lead Objects-Reference-Cited by-同舟云学术

Investigation towards Laser Cleaning of Corrosion Products from Lead Objects

Published:2023-01-29 Issue:2 Volume:6 Page:1293-1307
ISSN:2571-9408
Container-title:Heritage
language:en
Short-container-title:Heritage

Author:

Prokuratov Denis¹²³,Samokhvalov Andrey⁴,Pankin Dmitry⁵,Vereshchagin Oleg⁶^ORCID,Kurganov Nikolai⁷⁸,Povolotckaia Anastasia⁵^ORCID,Shimko Alexander⁵,Mikhailova Alexandra⁵,Balmashnov Roman⁹,Reveguk Anastasia¹⁰^ORCID,Smolyanskaya Olga²^ORCID,Redka Dmitry¹¹¹²,Bobrovs Vjaceslavs¹²^ORCID

Affiliation:

1. The State Hermitage Museum, 190000 St. Petersburg, Russia

2. Heritage Science Laboratory, ITMO University, 199034 St. Petersburg, Russia

3. School of Arts and Cultural Heritage, European University at St. Petersburg, 191187 St. Petersburg, Russia

4. International Scientific Laboratory of Laser Micro- and Nanotechnology, ITMO University, 197101 St. Petersburg, Russia

5. Centre for Optical and Laser Materials Research, St. Petersburg University, 198504 St. Petersburg, Russia

6. Mineralogical Department, Institute of Earth Sciences, St. Petersburg University, 199034 St. Petersburg, Russia

7. Conservation Department, Faculty of Arts, St. Petersburg University, 199004 St. Petersburg, Russia

8. Institute of the History of Material Culture of the Russian Academy of Sciences, 191186 St. Petersburg, Russia

9. Lasers & Optical Systems Co., Ltd., 199053 St. Petersburg, Russia

10. Physical Methods of Surface Investigation Resource Centre, St. Petersburg University, 198504 St. Petersburg, Russia

11. Photonics Department, St. Petersburg Electrotechnical University (“LETI”), 197022 St. Petersburg, Russia

12. Institute of Telecommunications, Riga Technical University, 1048 Riga, Latvia

Abstract

In this work lasers with micro-, nano-, pico- and femtosecond pulse durations were used to clean atmospheric corrosion products from the fragments of a 19th-century lead outdoor sculpture. The state of the surface was studied by optical microscopy, Raman spectroscopy, X-ray photoelectron spectroscopy and scanning electron microscopy. It was shown that for all lasers used there is no self-limiting cleaning effect, and the metal damage threshold is lower than the corrosion removal threshold. Using the XPS method, it has been demonstrated that the effect of turning a metallic lead surface blue after irradiation is associated with an interference effect in the PbO film. Raman spectroscopy indicated no phase changes in the corrosion layer after laser cleaning with 8 ns, 75 ps and 100 fs pulses, which makes these lasers useful for the layer-by-layer cleaning of archaeological objects.

Funder

Russian Federation

Publisher

MDPI AG

Subject

Materials Science (miscellaneous),Archeology,Conservation

Link

https://www.mdpi.com/2571-9408/6/2/71/pdf

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