Results 61 to 70 of about 129,616 (305)

Characterization of Nitinol Produced by Laser Powder Bed Fusion for Mechanical Metamaterial Applications

Advanced Engineering Materials, EarlyView.
Stabilization of L‐PBF Ni50.7Ti49.3 under low‐cycle loading was investigated. Recoverable strain after cycling was dependent on the amount of applied load. Recovery ratio was 53.4% and 35.1% at intermediate and high load, respectively. The maximum total strain reached 10.3% at a high load of 1200 MPa.
Ondřej Červinek, Jakub Hurník, Miroslav Šmíd, Ondřej Zobač, Melanie Todt, Daniel Koutný   +5 more
wiley   +1 more source

Enhanced relativistic-electron beam collimation using two consecutive laser pulses

, 2019
The double laser pulse approach to relativistic electron beam (REB) collimation has been investigated at the LULI-ELFIE facility. In this scheme, the magnetic field generated by the first laser-driven REB is used to guide a second delayed REB.
Batani, D., Curcio, A., Ehret, M., Honrubia, J. J., Jakubowska, K., Malko, S., Morace, A., Perez, F., Santos, J. J., Vaisseau, X., Volpe, L.   +10 more
core   +1 more source

Energy absorption of xenon clusters in helium nanodroplets under strong laser pulses [PDF]

, 2007
Energy absorption of xenon clusters embedded in helium nanodroplets from strong femtosecond laser pulses is studied theoretically. Compared to pure clusters we find earlier and more efficient energy absorption in agreement with experiments.
Mikaberidze, Alexey, Rost, Jan M., Saalmann, Ulf   +2 more
core   +2 more sources

Electrical Conductivities of Conductors, Semiconductors, and Their Mixtures at Elevated Temperatures

Advanced Engineering Materials, EarlyView.
This article presents a comprehensive review of temperature‐dependent electrical conductivity data for multiple material classes at elevated temperatures, highlighting a persistent conductivity gap between metals and semiconductors in the range of 102$\left(10\right)^{2}$– 107$\left(10\right)^{7}$ S/m. Metal–ceramic irregular metamaterials are proposed
Valentina Torres Nieto, Marcia A. Cooper
wiley   +1 more source

Formation of colloidal solutions of silicon nanoparticles in ethyl alcohol with ultra-short laser pulses

Весці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навук, 2021
The study of surface morphology of a silicon target after laser exposure, the formation and study of nanoparticles, obtained by laser ablation by ultrashort infrared pulses, were conducted. The material was processed using a yttrium aluminum garnet laser
A. P. Laskovnev, M. I. Markevich, A. N. Malyshko, V. I. Zhuravleva, A. M. Chaplanov   +4 more
doaj   +1 more source

Optimization of the ionization time of an atom with tailored laser pulses: a theoretical study [PDF]

, 2016
How fast can a laser pulse ionize an atom? We address this question by considering pulses that carry a fixed time-integrated energy per-area, and finding those that achieve the double requirement of maximizing the ionization that they induce, while ...
Castro, Alberto, Kammerlander, David, Marques, Miguel A. L.   +2 more
core   +3 more sources

Effect of Laser Deoxidation on Adhesive‐Bonded Aluminum in an Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
This study investigates laser ablation of aluminum under oxygen‐free conditions. The goal is to produce oxide‐free substrates that enable improved adhesive bonding with epoxy. Optimized laser parameters (90% overlap, 300 µJ) combined with oxide‐free substrates result in the highest tensile strength of the adhesive bond.
Sandra Gerland, Finn‐Lennard Janthur, Sarah Seffer, Jörg Hermsdorf, Ludger Overmeyer, Annika Raatz   +5 more
wiley   +1 more source

INVESTIGATION OF THE CHANNEL-FORM EFFECT ON THE FORMATION PROCESSES OF AND NANOCLUSTERS IN PLASMA WHEN ALUMINUM TARGET IS SUBJECTED TO SERIES OF DOUBLE LASER PULSES IN AIR

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2019
The microchannel-form effect on the formation of AlO and AlN in the laser plasma has been studied when the surface of a target of D16 Т aluminum alloy was subjected to series of sequential focused double laser pulses in air.
K. Bazzal, Е.S. Voropay, А.P. Zajogin, М.P. Patapovich   +3 more
doaj   +1 more source

Al–Cu Composite Casting of Laser‐Deoxidized Copper: Bonding, Interfacial Chemistry, and Thermal Conductivity

Advanced Engineering Materials, EarlyView.
This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff, Finn‐Lennard Janthur, Sascha Zimmermann, Sarah Seffer, Jörg Hermsdorf, René Gustus, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Christian Klose   +9 more
wiley   +1 more source

Timing Recollision in Nonsequential Double Ionization by Intense Elliptically Polarized Laser Pulses

, 2018
We examine correlated electron and doubly charged ion momentum spectra from strong field double ionization of Neon employing intense elliptically polarized laser pulses.
Czasch, A., Dorner, R., Eckart, S., Fehre, K., Hao, X., Henrichs, K., Jahnke, T., Kang, H., Kunitski, M., Liu, X., Schmidt, L. Ph. H., Schoffler, M., Wang, Y.   +12 more
core   +1 more source