Results 41 to 50 of about 6,746,161 (288)

A Study of the Characteristics of Plasma Generated by Infrared Pulse Laser-Induced Fused Silica

Crystals, 2021
When high energy infrared laser pulses are incident on fused silica, the surface of the fused silica is damaged and a laser-induced plasma is produced.
Lixue Wang, Xudong Sun, Congrui Geng, Zequn Zhang, Jixing Cai   +4 more
doaj   +1 more source

Laser adhesion test for thermal sprayed coatings on textured surface by laser [PDF]

, 2016
The laser shock adhesion test (LASAT) is a technique allowing the generation of high tensile stresses in materials. The LASAT consists in focusing a pulsed laser beam on a water-confined target.
BOUSTIE, Michel, S. Costil, COURAPIED, Damien, J. Cormier, BERTHE, Laurent, R. Kromer, CORMIER, Jonathan, KROMER, Robin, MILHET, Xavier, M. Boustie, X. Milhet, L. Berthe, D. Courapied, PEYRE, Patrice, COSTIL, Sophie, P. Peyre   +15 more
core   +1 more source

Sequential Atmospheric Pressure Plasma-Assisted Laser Ablation of Photovoltaic Cover Glass for Improved Contour Accuracy

Micromachines, 2014
In this paper, we present sequential atmospheric pressure plasma-assisted laser ablation of photovoltaic cover glass. First, glass samples were plasma pre-treated using a hydrogenous plasma process gas in order to accomplish a modification of the near ...
Christoph Gerhard, Maximilian Dammann, Stephan Wieneke, Wolfgang Viöl   +3 more
doaj   +1 more source

Hardness determination of bio-ceramics using laser-induced breakdown spectroscopy. [PDF]

, 2011
Laser-Induced Breakdown Spectroscopy (LIBS) was applied to the analysis of bioceramic samples. The relationship between sample hardness and LIBS plasma properties was investigated, with comparison to conventional Vickers hardness measurements.
Moser, D., Pilkington, R.D., Cowpe, J.S., R.D. Moorehead, Crofts, G, S.H. Kilcoyne, Kilcoyne, SH, S. Karthikeyan, Crofts, G., J.S. Astin, Astin, JS, Astin, J.S., Cowpe, JS, Kilcoyne, Susan H., D. Moser, Karthikeyan, S, J.S. Cowpe, G. Crofts, Pilkington, RD, Moser, D, Moorehead, R.D., Moorehead, RD, Karthikeyan, S., R.D. Pilkington   +23 more
core   +1 more source

Localized in-situ deposition: a new dimension to control in fabricating surface micro/nano structures via ultrafast laser ablation

Frontiers of Optoelectronics, 2023
Controllable fabrication of surface micro/nano structures is the key to realizing surface functionalization for various applications. As a versatile approach, ultrafast laser ablation has been widely studied for surface micro/nano structuring. Increasing
Peixun Fan, Guochen Jiang, Xinyu Hu, Lizhong Wang, Hongjun Zhang, Minlin Zhong   +5 more
doaj   +1 more source

Laser ablation molecular isotopic spectroscopy: A novel tool to characterise the distribution of 13C and 12C on graphite after 13CH4 tracer injection in Wendelstein 7-X

Nuclear Materials and Energy, 2022
Wendelstein 7-X (W7-X) operation with inertially cooled graphite Test Divertor Unit (TDU) was finalised in a series of identical hydrogen plasmas with injection of 13C isotopically marked methane. The break-up of 13CH4, injected through gas inlets at one
E. Wüst, T. Dittmar, C. Kawan, J. Romazanov, S. Brezinsek   +4 more
doaj   +1 more source

Laser Surface Annealing of Plasma Sprayed Coatings

Journal of Surface Engineered Materials and Advanced Technology, 2012
Laser surface annealing provides a rapid and efficient means for surface alloying and modification of ceramic materials. In this study, Alumina-13% Titania coatings were sprayed with a water-stabilized plasma spray gun. The coated surface was treated by Excimer laser having a wavelength of 248 nm and pulse duration of 24 ns.
Ahmed Ibrahim, Yue Hung
openaire   +2 more sources

Fabrication of Hydrophilic Surface on Rigid Gas Permeable Contact Lenses to Enhance the Wettability Using Ultraviolet Laser System

Micromachines, 2019
The widely used rigid gas permeable (RGP) contact lenses provide higher oxygen permeability and tear exchange rate than do soft contact lenses. However, their wettability warrants improvement to enhance the wearing comfort.
Hsin-Yi Tsai, Yu-Chen Hsieh, Yu-Hsuan Lin, Han-Chao Chang, Yu-Hsiang Tang, Kuo-Cheng Huang   +5 more
doaj   +1 more source

Characterizations of welding mode transformation process during 1-μm and 10-μm laser welding

AIP Advances, 2020
To reveal the enhancing energy coupling effect of plasma, a comparison of the welding mode transformation process during 1-µm and 10-µm laser welding of aluminum alloys is carried out through experimental observation and theoretical analysis.
S. H. Guo, J. L. Zou, R. S. Xiao
doaj   +1 more source

Laser surface patterning to enhance adhesion of plasma sprayed coatings [PDF]

, 2015
In thermal spraying, adhesive bond strength is a feature of surface properties. An adapted surface is studied with prior-surface treatments to enhance interface energy.
BOUSTIE, Michel, COURAPIED, Damien, BERTHE, Laurent, COSTIL, S, Boustie, M., BOUSTIE, M, Cormier, J., CORMIER, Jonathan, Costil, S., KROMER, Robin, PEYRE, Patrice, Kromer, R., COSTIL, Sophie, KROMER, R, CORMIER, J, COURAPIED, D   +15 more
core   +1 more source