Документы

  • heritage-06-00071

    Конечная издательская версия, 5,55 MB, Документ PDF

DOI

  • Денис Прокуратов
  • Andrey Samokhvalov
  • Дмитрий Васильевич Панькин
  • Олег Сергеевич Верещагин
  • Николай Сергеевич Курганов
  • Анастасия Валерьевна Поволоцкая
  • Александр Анатольевич Шимко
  • Александра Александровна Михайлова
  • Roman Balmashnov
  • Анастасия Андреевна Ревегук
  • Olga Smolyanskaya
  • Dmitry Redka
  • Vjaceslavs Bobrovs
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.
Язык оригиналаанглийский
Страницы (с-по) 1293–1307
Число страниц15
ЖурналHeritage
Том6
Номер выпуска2
DOI
СостояниеОпубликовано - 29 янв 2023

ID: 102583871