Results 1 to 10 of about 499 (108)

RESEARCH OF Al2O3 AND Al NANOPOWDER FORMATION PROCESSES IN PLASMA UNDER THE INFLUENCE OF DEFOCUSED DUAL LASER PULSES ON ALUMINUM IN THE AIR ATMOSPHERE

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2021
The influence of the magnitude and type of defocusing of twin laser pulses on the purposeful formation of the component and charge composition of laser plasma under the influence of twin laser pulses on a target made of aluminum alloy AD1 (LSS-1 ...
Kh. Bazzal, E.S. Voropay, N.A. Alekseenko, M.N. Kovalenko, N.H. Trinh, A.P. Zazhogin   +5 more
doaj   +1 more source

Studies of processes of the precursor formation for production of CuAl2O4 nanoceramics at the effect of double laser pulses on AD1 and M2 alloys in the air atmosphere

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2021
A study of formation of mixed Al nanopowders, copper and aluminum oxides, and precursors for production of CuAlO2 and CuAl2O4 nanoceramics under the influence of double laser pulses with energy of 53 mJ and the interpulse interval of 10 microseconds on a
Maxim N. Kovalenko, Natalia A. Alekseenko, Ludmila V. Markova, Lubov S. Rutkovskaiy, Mariya P. Patapovich, Anatoli P. Zajogin   +5 more
doaj   +1 more source

SPECTRAL STUDIES OF THE PROCESSES OF ALUMINUM NANOPOWDER FORMATION EXPOSED BY SHORT SERIES OF TWIN LASER PULSES IN THE AIR ATMOSPHERE

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2020
The processes of formation of oxidized nanopowders depending on the number of pulses were studied when double laser pulses with an energy of 52 mJ and an interpulse interval of 10 microseconds were applied to an aluminum target placed in a closed ...
Kh. Bazzal, N.A. Alekseenko, E.S. Voropay, M. N. Kovalenko, N.H. Trinh, A.P. Zazhogin   +5 more
doaj   +1 more source

Selection of reagent ratio for hydrogen production via Al nanopowder oxidation

Journal of Physics: Conference Series, 2020
Abstract In the present paper, Al is considered as a basic material for hydrogen production from water because of its high performance, availability, and environmental safety of its reaction products. Here we report the results of experimental trials on the oxidation of Alex-grade Al nanopowder by water when heated and stirred. The plots
O N Morozova, A A Pavlenko, A A Antonnikova, S S Titov   +3 more
openaire   +1 more source

SPECTRAL STUDIES OF THE Al2O3 AND AlN NANOPOWDER FORMATION EXPOSED ALUMINUM BY A SERIES OF TWIN LASER PULSES IN THE AIR ATMOSPHERE

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2020
A study of the Al2O3 and AlN nanopowder formation under the influence of twin laser pulses with an energy of 52 mJ and between the pulse interval of 10 microseconds on an aluminum target placed in a closed glass rectangular box, depending on the number ...
Kh. Bazzal, N.A. Alekseenko, E.S. Voropay, M.N. Kovalenko, M.P. Patapovich, A.P. Zazhogin   +5 more
doaj   +1 more source

Synthesis and Characterization of Mixed‐Metal Oxide Nanopowders Along the CoO _x –Al ₂ O ₃ Tie Line Using Liquid‐Feed Flame Spray Pyrolysis [PDF]

Journal of the American Ceramic Society, 2006
We report here the use of liquid‐feed flame spray pyrolysis (LF‐FSP) to produce a series of nanopowders along the CoO x –Al 2 O 3 ...
Jose Azurdia, Julien Marchal, Richard M. Laine   +2 more
openaire   +1 more source

Production of metallic nanopowders (Mg, Al) by solar carbothermal reduction of their oxides at low pressure

Journal of Magnesium and Alloys, 2016
AbstractThe carbothermal reduction of MgO and Al2O3 in argon flow at low pressure allows to lower the onset temperature of metal vapor formation. Thermodynamic calculations indicate that metal formation begins at 1400 and 1700 K for a primary vacuum (1000 Pa), respectively, for Mg and Al.
Puig, J., Balat-Pichelin, M.
openaire   +3 more sources

Bifurcation of *COOH Pathway Determines HCOOH Formation in CO2 Electroreduction on Bismuth

Angewandte Chemie, EarlyView.
Driven by the mechanistic debate of Bi‐catalyzed CO2‐to‐HCOOH conversion, ambiguity remains regarding true reaction pathways. To resolve this, we combined constant‐potential AIMD simulations with spectroscopic evidence to analyze the competitive pathways.
Hyun Dong Jung, Jiawei Deng, Yanbo Hua, Kun Jiang, Seoin Back   +4 more
wiley   +2 more sources

Microstructure, Thermal Transport, and Dry‐Sliding Tribology of Powder‐Metallurgy Al7075 Composites Reinforced With Sol–Gel‐Derived ZnO–rGO Hybrid Nanoparticles

Advanced Engineering Materials, EarlyView.
Sol–gel‐derived ZnO–rGO hybrid nanoparticles enable Al7075 powder‐metallurgy composites to achieve concurrent gains in hardness and thermal conductivity while markedly lowering friction and wear. The hybrid architecture couples ZnO‐based load support with rGO‐assisted lamellar sliding and heat spreading, revealing a promising route toward lightweight ...
Bunyamin Aksakal, Cevher Kursat Macit, Merve Ayık, Hakan Tutumlu   +3 more
wiley   +1 more source

Conformal Metallosaccharide Hybrid Films for Protecting Wood Surfaces From Environmental Damage

Advanced Functional Materials, EarlyView.
Ti‐ribose hybrid films fabricated by molecular layer deposition form a conformal and uniform coating on wood surfaces, which provides water repellence, dimensional stability, and resistance to acidic and alkaline environments, while preserving the natural appearance.
Wenwen Wang, Aranzazu Sierra Fernandez, Gabriele Botta, Evgenii Modin, Iva Šarić Janković, Shidong Ji, Junli Liu, Mato Knez   +7 more
wiley   +1 more source