Results 71 to 80 of about 272,023 (314)

Innovative Processing of Compacted Waste Aluminum Alloy Powders via Controlled Remelting and Solidification

Advanced Engineering Materials, EarlyView.
This study demonstrates an efficient recycling route for out‐of‐spec AlSi10Mg atomized powders through compaction and arc remelting followed by suction casting. By correlating compaction load, cooling rate, and resulting microstructure, we show that intermediate pressures (50–80 kN) and rapid cooling refine dendrites, reduce porosity, and enhance ...
Mila Christy de Oliveira, Marcella Gaute Cavalcante Xavier, Abdoul‐Aziz Bogno, Piter Gargarella, José Eduardo Spinelli   +4 more
wiley   +1 more source

Characterization of the aerosol produced by infrared femtosecond laser ablation of polyacrylamide gels for the sensitive inductively coupled plasma mass spectrometry detection of selenoproteins [PDF]

, 2009
A 2D high repetition rate femtosecondlaserablation strategy (2-mm wide lane) previously developed for the detection of selenoproteins in gel electrophoresis by inductively coupled plasma mass spectrometry was found to increase signal sensitivity by a ...
Claverie, Fanny, Fernandez Garcia, Beatriz, Fernandez, B., Pécheyran, Christophe, Mounicou, Sandra, Alexis, Joël, Claverie, F., Donard, Olivier François Xavier, Lobinski, Ryszard, Ballihaut, Guillaume, Ballihaut, G., Donard, Olivier F. X.   +11 more
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Grain refinement and mechanical properties for AISI304 stainless steel single-tracks by laser melting deposition: Mathematical modelling versus experimental results

Results in Physics, 2021
Many of the significant mechanical properties of stainless steel, including ultimate tensile strength, yield strength and hardness, the ductile–brittle transition temperature, and susceptibility to environmental embrittlement, can be improved by grain ...
Muhammad Arif Mahmood, Andrei C. Popescu, Mihai Oane, Diana Chioibasu, Gianina Popescu-Pelin, Carmen Ristoscu, Ion N. Mihailescu   +6 more
doaj   +1 more source

Performance Analysis of Abradable Coating Systems for Aircraft Gas Turbines

Advanced Engineering Materials, EarlyView.
Three CoNiCrAlY/YSZ/MgAl2O4 abradable liner configurations on a nickel‐superalloy are evaluated by thermal‐gradient cycling and incursion tests. Laser ablation of the bondcoat and/or Y2O3‐stabilized ZrO2 (YSZ) intermediate layer increases mechanical interlocking and bonding for thick topcoats.
Hanna Heyl, Daniel Emil Mack, Martin Tandler, Susanne Schrüfer, Robert Vaßen   +4 more
wiley   +1 more source

Watt-Level Output Power Operation From Diode-Laser Pumped Circular Buried Depressed-Cladding Waveguides Inscribed in Nd:YAG by Direct Femtosecond-Laser Writing

IEEE Photonics Journal, 2016
Circular buried depressed-cladding waveguides have been inscribed in Nd:YAG ceramic media by direct writing with a femtosecond-laser beam. A classical step-by-step translation of the medium method, as well as a newly developed helical-moving technique ...
Gabriela Salamu, Florin Jipa, Marian Zamfirescu, Nicolaie Pavel   +3 more
doaj   +1 more source

The impact of O/Si ratio and hydrogen content on ArF excimer laser ablation of fused silica [PDF]

Journal of the European Optical Society-Rapid Publications, 2014
The impact of stoichiometry and hydrogen content on the ArF excimer laser ablation characteristics of fused silica is investigated. Near-surface substoichiometic SiOx with X < 2 diminishes the ablation threshold as a result of increased absorption.
Tasche D., Gerhard C., Ihlemann J., Wieneke S., Viöl W.   +4 more
doaj   +1 more source

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

Advanced Engineering Materials, EarlyView.
Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley   +1 more source

Scaling of laser produced plasma UTA emission down to 3 nm for next generation lithography and short wavelength imaging

, 2011
Presented at a poster session at Advances in X-Ray/EUV Optics and Components VI, Monday 22 August 2011, San Diego, California, USAAn engineering prototype high average power 13.5-nm source has been shipped to semiconductor facilities to permit the ...
Deirdre Kilbane, Noboru Yugami, Endo, Akira, Yugami, Noboru, Donnelly, Tony, Jiang, Weihua, O'Sullivan, Gerry, O\u27Gorman, Colm, Li, Bowen, O'Gorman, Colm, Dunne, Padraig, Otsuka, Takamitsu, Kilbane, Deirdre, Cummins, T. (Thomas), Weihua Jiang, Takamitsu Otsuka, Higashiguchi, Takeshi, Akira Endo, O\u27Sullivan, Gerry, Colm O'Gorman, Padraig Dunne, Takeshi Higashiguchi, Gerry O'Sullivan, Bowen Li, Thomas Cummins, Tony Donnelly   +25 more
core   +1 more source

Affecting the Properties of Copper–Graphene Electroconductive Composite by Severe Plastic Deformation

Advanced Engineering Materials, EarlyView.
Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich, Lenka Kunčická, Pavel Czernek, Zifan Wang   +3 more
wiley   +1 more source

Desenvolvimento e construção de um laser de CO2 [PDF]

, 1992
Dissertação (Mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas.Neste trabalho nós estudamos a possibilidade de excitarmos um laser de CO2 com microondas através de ondas eletromagnéticas de superfície.
Cinelli, Milton Jose
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