Results 41 to 50 of about 277 (107)

Efficient preparation and evaluation of dry gas sealed spiral grooves

High Temperature Materials and Processes
Dry gas seals (DGSs) are emerging as advanced forms of sealing under high-speed working conditions owing to their low wear, zero leakage, and long-life characteristics.
He Yiming, Wang Yan, Huang Zhouxin, Kong Kangjie, Zhao Quanzhong, Jin Xucheng, Wang Yiqin, Liu Wei   +7 more
doaj   +1 more source

Experimental Investigations on Laser Ablation of Aluminum in Sub-Picosecond Regimes

Applied Sciences, 2020
Due to high power and ultrashort pulses, femtosecond lasers excel at (but are not limited to) processing materials whose thicknesses are less than 500 microns. Numerous experiments and theoretical analyses testify to the fact that there are solid grounds
Katarzyna Garasz, Marek Kocik
doaj   +1 more source

High Speed Pump-Probe Apparatus for Observation of Transitional Effects in Ultrafast Laser Micromachining Processes

Micromachines, 2015
A pump-probe experimental approach has been shown to be a very efficient tool for the observation and analysis of various laser matter interaction effects.
Ilya Alexeev, Johannes Heberle, Kristian Cvecek, Konstantin Yu. Nagulin, Michael Schmidt   +4 more
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Recent Advances in Applications of Ultrafast Lasers

Photonics
Ultrafast lasers, characterized by femtosecond and picosecond pulse durations, have revolutionized material processing due to their high energy density and minimal thermal diffusion, and have played a transformative role in precision manufacturing.
Sibo Niu, Wenwen Wang, Pan Liu, Yiheng Zhang, Xiaoming Zhao, Jibo Li, Maosen Xiao, Yuzhi Wang, Jing Li, Xiaopeng Shao   +9 more
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The role of turbulence in bottom-up nanoparticle synthesis using ultrafast laser filamentation in ethanol

Journal of the Mechanical Behavior of Materials
Ultrafast laser filamentation in liquids based on nonlinear optical phenomenon is a new method for bottom-up nanoparticle synthesis. The process is able to synthesize nanomaterials such as nanodiamonds from the liquid precursor.
Tan Han Yi, Ong Guang Liang, Nee Chen Hon, Tou Teck Yong, Yap Seong Ling, Sanz-Navarro Carlos Federico, Lee Siaw Foon, Yap Seong Shan   +7 more
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Exploring the Role of Artificial Intelligence in Precision Photonics: A Case Study on Deep Neural Network‐Based fs Laser Pulsed Parameter Estimation for MoOx Formation

Advanced Photonics Research
Ultrafast pulsed laser technology presents unique challenges and opportunities in material processing and characterization for precision photonics.
Jose R. Paredes‐Miguel, Miroslava Cano‐Lara, Andres A. Garcia‐Granada, Andres Espinal, Marcos J. Villaseñor‐Aguilar, Leonardo Martinez‐Jimenez, Horacio Rostro‐Gonzalez   +6 more
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Capturing thin-film microstructure contributions during ultrafast laser-metal interactions using atomistic simulations

Materials & Design
Progress in the emerging fields of atomic and close-to-atomic scale manufacturing is underpinned by enhanced precision and optimization of laser-controlled nanostructuring.
Hariprasath Ganesan, Stefan Sandfeld
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Ultrafast Laser Asynchronous Processing for Laser Metal Deposition Manufacturing of Ti6Al4V

The International Journal of Advanced Manufacturing Technology
Abstract Additive manufacturing technology has rapidly developed to enable the manufacturing of various complex feature parts. However, parts manufactured through Laser Metal Deposition (LMD) often exhibit poor surface quality with the waviness of significant peak-to-valley distances, making it hard to improve surface quality through laser ...
Jing Zhou, Yuyang Song
openaire   +1 more source

Study on the Influence of Ultrafast Laser Welding Parameters on Glass Bonding Performance

Micromachines
Glass enjoys a wide range of applications thanks to its superior optical properties and chemical stability. Conventional glass bonding techniques suffer from low efficiency, limited precision, and high cost.
Aowei Xing, Ziwei Li, Tianfeng Zhou, Zhiyuan Huang, Weijia Guo, Peng Liu   +5 more
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Crossing the threshold of ultrafast laser writing in bulk silicon

Nature Communications, 2017
Ultrafast laser processing is a versatile three-dimensional photonic structuring method but it has been limited to wide band gap materials like glasses. Here, Chanal et al.
Margaux Chanal, Vladimir Yu. Fedorov, Maxime Chambonneau, Raphaël Clady, Stelios Tzortzakis, David Grojo   +5 more
doaj   +1 more source