1320 nm Range Nd:YAG-Laser in Restoration of Artworks Made of Bronze and Other Metals

Батище, С. А.; Kouzmouk, A.; Tatur, H.; Gorovets, T.; Pilipenka, Uladzimir A.; Ukhau, V.

doi:10.1007/3-540-27176-7_11

Cited by 2 publications

(2 citation statements)

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“…The nature of the observed color changes is directly related to the thickness of the re-deposited layer created by repetitive cycles of laser ablation. However, previous studies [16,50] did not report any surface alterations when cleaning copper alloys using a Nd:YAG laser at 1064 nm with pulse duration in the microsecond regime. The use of these longer pulses is expected to increase the conduction of heat to the bulk material as compared with nanosecond pulses.…”

Section: Discussionmentioning

confidence: 90%

Evaluation of laser cleaning for the restoration of tarnished silver artifacts

Palomar

Oujja

Llorente

et al. 2016

Applied Surface Science

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a b s t r a c tIn this study we evaluate the laser cleaning of tarnished pure and sterling silver substrates using a nanosecond Q-switched Nd:YAG laser at 1064, 532 and 266 nm. To assess the effects associated with cyclic laser cleaning treatments, several cycles of tarnishing followed by laser cleaning were applied on silver coupons that were characterized by gravimetry, colorimetry, scanning electron microscopy, X-ray photoelectron spectroscopy and micro-Raman spectroscopy. According to the obtained results, none of the three wavelengths is recommended for laser cleaning of pure silver objects, while for sterling silver artifacts, the visible laser wavelength of 532 nm seems the most appropriate.

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Section: Discussionmentioning

confidence: 90%

Evaluation of laser cleaning for the restoration of tarnished silver artifacts

Palomar

Oujja

Llorente

et al. 2016

Applied Surface Science

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“…However, the removal of superficial corrosion from metal artefacts is not an easy task [7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24], due to the specific type of physical and chemical bonds. Very often, as can be seen from literature, the cleaning process is incomplete or the underneath material is permanently affected.…”

Section: Introductionmentioning

confidence: 99%

Laser selectivity on cleaning museologic iron artefacts

Pereira

Pires

Costa

et al. 2006

XVI International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers

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Three distinct techniques were used to clean Fe alloys objects with surface corrosion. These objects are presently kept in Physics Museum of the University of Coimbra. The techniques used were mechanical, chemical (EDTA solution) and LASER (pulsed CO 2 and Nd:YAG-Q-Switch). The chemical characterisation and the evaluation of the cleaning degree were done by transmission 57 Fe Mössbauer spectroscopy. The results suggest that: the mechanical process of cleaning does not allow total removal of corrosion, reaching easily the substrate and so causing mechanical damage; the cleaning method using EDTA in confined environment and high controlled conditions, removes the corrosion products efficiently, without damaging the surface; and the cleaning methods using LASER although not achieving complete removal of corrosion, show clear characteristics of selectivity when acting on the corrosion layer or on the metal surface.

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1320 nm Range Nd:YAG-Laser in Restoration of Artworks Made of Bronze and Other Metals

Cited by 2 publications

References 1 publication

Evaluation of laser cleaning for the restoration of tarnished silver artifacts

Evaluation of laser cleaning for the restoration of tarnished silver artifacts

Laser selectivity on cleaning museologic iron artefacts

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