Laser cleaning of copper roofing sheets subjected to long-lasting environmental corrosion |
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| Authors: | H Garbacz E Fortuna J Marczak M Strzelec A Rycyk A Koss J Mróz A Zatorska K J Kurzyd?owski |
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| Institution: | (1) Kimika Analitikoaren Saila – Department of Analytical Chemistry, Faculty of Science and Technology, University of the Basque Country (EHU/UPV), P.O. Box 644, 48080 Bilbao, Basque Country, Spain |
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| Abstract: | The study was concerned with the effect of the laser fluence and pulse duration on the microstructure of copper roofing of
the Wilanów Palace in Warsaw (Poland) subjected to environmental degradation since the turn 19th century. The techniques used
for the microstructure examinations included: SEM+EDS, X-ray diffraction analysis, surface profiling and colour analysis.
The measurements of colour of the laser-cleaned surfaces showed that series of 100-μs pulses offer the most effective cleaning.
It was also found that by controlling the number of laser pulses it is possible to control the roughness of the cleaned surface. |
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