Results 11 to 20 of about 33,941 (261)

Study on the Surface Morphology of Micro-Particles and the Oxide Layer on Silicon Carbide Crystal Using Nanosecond Green Laser Cleaning Assisted with Airflow

open access: yesCrystals, 2022
With a focus on the particle pollutants on the surface of silicon carbide crystal materials, this paper establishes a laser cleaning model for the fine particles found in silicon carbide crystal materials and proposes a new nanosecond green laser ...
Haibing Xiao   +3 more
doaj   +1 more source

Laser surface cleaning of stones and some metal objects [PDF]

open access: yesEngineering and Technology Journal, 2015
Iron, copper and stone samples were cleaned by Nd: YAG laser using different number of nano laser pulses at variable intensities. Fundamental (1.06 µm) and frequency doubled (0.53 µm) wavelengths cleaning efficiency was tested by measuring the crust and ...
Walid Hamoudi   +2 more
doaj   +1 more source

Substrate Cleaning Threshold for Various Coated Al Alloys Using a Continuous-Wave Laser

open access: yesPhotonics, 2021
In this study, different coatings (gray epoxy primer, white epoxy varnish and red alkyd paint) of 7075 aluminum alloy are cleaned with a 500 W continuous-wave (CW) fiber laser.
Xudong Sun   +5 more
doaj   +1 more source

Laser cleaning of unwanted jewelry patina [PDF]

open access: yesTehnika, 2022
Women's necklace-filigree with patina, of unknown age, owned by a private collection was cleaned with a Nd:YAG laser. Laser parameters were varied during the experiment; wavelength, fluence and number of pulses, ie irradiation time.
Ristić Slavica S.   +2 more
doaj   +1 more source

Characterization of Laser Cleaning of Artworks [PDF]

open access: yesSensors, 2008
The main tasks of conservators of artworks and monuments are the estimation and analysis of damages (present condition), object conservation (cleaning process), and the protection of an object against further degradation. One of the physical methods that is becoming more and more popular for dirt removal is the laser cleaning method. This method is non-
Marczak, Jan   +8 more
openaire   +3 more sources

Evaluation of the Laser Cleaning Efficacy of Q235 Steel Using Laser-Induced Breakdown Spectroscopy

open access: yesMetals, 2022
Laser cleaning is a good alternative to ablate and remove contaminants from different samples. To meet the practical demand, we present the elemental analysis of Q235 steel samples, using laser-induced breakdown spectroscopy (LIBS) to enhance the laser ...
Syed Zaheer Ud Din   +4 more
doaj   +1 more source

Removal mechanism of liquid-assisted nanosecond pulsed laser cleaning TA15 titanium alloy oxide film

open access: yesJournal of Materials Research and Technology, 2022
Liquid-assisted pulsed laser cleaning is achieved by coating kerosene on titanium alloy oxide film, and the surface was processed to form micro- and nanostructured amorphous-nanocrystalline phases oxidized layer after laser cleaning.
Zhichao Li   +7 more
doaj   +1 more source

Glass Substrate Dust Removal Using 233 fs Laser-Generated Shockwave

open access: yesMicromachines, 2021
Eliminating dust is gaining importance as a critical requirement in the display panel manufacturing process. The pixel resolution of display panels is increasing rapidly, which means that even small dust particles on the order of a few micrometers can ...
Myeongjun Kim   +3 more
doaj   +1 more source

Research on pulse laser cleaning and rust removal technology in power systems

open access: yesAIP Advances, 2023
In this paper, pulse laser cleaning and angle grinder polishing were used to clean the surface rust of carbon steel, and the cleaning effects of different cleaning methods for carbon steel surface rust were studied.
Yuhang He, Xuan Cai, Jianfeng Ye
doaj   +1 more source

Ultra-Short Pulse Laser Cleaning of Contaminated Pleistocene Bone: A Comprehensive Study on the Influence of Pulse Duration and Wavelength

open access: yesHeritage, 2023
The impact of wavelength and pulse duration in laser cleaning of hard blackish contaminants crust from archaeologically significant Pleistocene bone is investigated in this research.
Md. Ashiqur Rahman   +7 more
doaj   +1 more source

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