Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials
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Spectral studies of the processes of aluminum nanopowder formation exposed by short series of twin laser pulses in the air atmosphere

K. Bazzal1, N.A. Alekseenko2, E.S. Voropay1, M.N. Kovalenko1, N.H. Trinh3, A.P. Zajogin1

1 Belarusian State University, Minsk, Belarus
2 Powder Metallurgy Institute named after academician O. V. Roman, Minsk, Belarus
3 Vinh University, Vinh, Vietnam

DOI: 10.26456/pcascnn/2020.12.008

Original article

Abstract: 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 rectangular glass cuvette. It was found that the highest intensity of the Al III ion lines is observed at a small, about 15 pulses, consecutive double pulses in a series. The size of primary particles estimated by high-resolution electron microscopy was mainly 50-60 nm, and the particles were collected in agglomerates.

Keywords: oxidized nanopowders Al, Al2O3, AlO suboxides, pulsed laser sputtering, laser plasma, laser spark spectrometry, multicharged ions, dual laser pulses

  • Khoder . Bazzal – postgraduate student, Department of Laser Physics and Spectroscopy, Faculty of Physics, Belarusian State University, Minsk, Belarus
  • Natalia A. Alekseenko – Head of the Research Laboratory of electronic probe analysis, Powder Metallurgy Institute named after academician O. V. Roman, Minsk, Belarus
  • Evgeniy S. Voropay – Dr. Sc., Full Professor, Professor of the Department of Laser Physics and Spectroscopy, Faculty of Physics, Belarusian State University, Minsk, Belarus
  • Maxim N. Kovalenko – Head of the Research Laboratory «Spectroscopic systems», Faculty of Physics, Belarusian State University, Minsk, Belarus
  • Ngoc H. Trinh – Ph. D., Head of the Applied Physics Department, Vinh University, Vinh, Vietnam
  • Anatoli P. Zajogin – Dr. Sc., Full Professor, Professor of the Department of Laser Physics and Spectroscopy, Faculty of Physics, Belarusian State University, Minsk, Belarus

Reference:

Bazzal, K.. Spectral studies of the processes of aluminum nanopowder formation exposed by short series of twin laser pulses in the air atmosphere / K.. Bazzal, N.A. Alekseenko, E.S. Voropay, M.N. Kovalenko, N.H. Trinh, A.P. Zajogin // Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials. — 2020. — I. 12. — P. 8-15. DOI: 10.26456/pcascnn/2020.12.008. (In Russian).

Full article (in Russian): download PDF file

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