Results 71 to 80 of about 412,203 (293)

THE FORMATION OF TiO NANOCLUSTERS IN THE SURFACE LASER PLASMA WHEN TITANIUM AND BARIUM TITANATE ARE SUBJECTED TO THE EFFECT OF DOUBLE LASER PULSES [PDF]

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2012
The effect of an additional laser pulse on the formation of the composition and charge state of the surface laser plasma was studied by the laser spark spectrometry (LSS) method.
Fadaeian Ahmad Reza, S.V. Protsenko, А.P. Zajogin   +2 more
doaj  

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

SYNTHESIS OF THE ZINC OXIDE NANOCLUSTERS DOPED WITH COPPER FROM ORTHOPHOSPHATE SALTS IN POROUS SAMPLES ON LASER ABLATION [PDF]

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2013
Spectroscopic studies of the surface laser plasma formed close to the porous body containing nanoquantities of different zinc and copper salts under the effect of two successive pulses have been performed.
М.P. Patapovich, N.H. Trinh, Le Thi Kim Anh, A.P. Zajogin   +3 more
doaj  

A Remote Laser Mass Spectrometer for Lunar Resource Assessment [PDF]

The use of lasers as a source of excitation for surface mass spectroscopy has been investigated for some time. Since the laser can be focused to a small spot with intensity, it can vaporize and accelerate atoms of material.
Deyoung, R. J., Williams, M. D.
core   +1 more source

Plasma Formation Dynamics in Intense Laser-Droplet Interaction

, 2013
We study the ionization dynamics in intense laser-droplet interaction using three-dimensional, relativistic particle-in-cell simulations. Of particular interest is the laser intensity and frequency regime for which initially transparent, wavelength-sized
Bauer, D., Liseykina, T. V.
core   +1 more source

Removing Oxide Layers and Retaining Oxide‐Free Steel Surfaces by Polishing in Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
In this study, the efficacy of wet mechanical polishing under an oxygen‐free atmosphere for deoxidation and the retention of an oxide‐free steel surface are elucidated using X‐ray photoelectron spectroscopy. The methodology proved successful; however, the results were highly dependent on the preparation of the solvents used to clean the samples after ...
Friedrich Bürger, Lienhard Wegewitz, Wolfgang Maus‐Friedrichs   +2 more
wiley   +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

Design and development of a LIBS system on linear plasma device PSI-2 for in situ real-time diagnostics of plasma-facing materials

Nuclear Materials and Energy, 2017
Laser induced breakdown spectroscopy (LIBS) is a strong candidate for detecting and monitoring the H/D/T content on the surface of plasma facing components (PFCs) due to its capability of fast direct in situ measurement in extreme environment (e.g ...
X. Jiang, G. Sergienko, B. Schweer, N. Gierse, M. Hubeny, A. Kreter, S. Brezinsek, Ch. Linsmeier   +7 more
doaj   +1 more source

Investigation of Oxygen‐Free Wetting Behavior of Aluminum on Copper via Molecular Dynamics Simulations and Experiments

Advanced Engineering Materials, EarlyView.
The wettability of aluminum droplets (Al) on different copper substrates (Cu), where liquid Al spreads on solid Cu surfaces to form a liquid–solid interface, is studied numerically and experimentally. The experimental and numerical results show good agreement in the fast‐spreading regime.
Shan Lyu, Timon Steinhoff, Finn‐Lennard Janthur, Sarah Seffer, Jörg Hermsdorf, Christian Klose, Ludger Overmeyer, Hans‐Jürgen Maier, Nina Merkert   +8 more
wiley   +1 more source

Surface waves and electron acceleration from high-power, kilojoule-class laser interactions with underdense plasma

New Journal of Physics, 2013
Experiments were performed on the Omega EP laser facility to study laser pulse propagation, channeling phenomena and electron acceleration from high-intensity, high-power laser interactions with underdense plasma.
L Willingale, A G R Thomas, P M Nilson, H Chen, J Cobble, R S Craxton, A Maksimchuk, P A Norreys, T C Sangster, R H H Scott, C Stoeckl, C Zulick, K Krushelnick   +12 more
doaj   +1 more source