Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials
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Spectral studies of the Al2O3 and AlN nanopowder formation exposed aluminum by a series of twin laser pulses in the air atmosphere

K. Bazzal1, N.A. Alekseenko2, E.S. Voropay1, M.N. Kovalenko1, M.P. Patapovich3, A.P. Zajogin1

1 Belarusian State University
2 Powder Metallurgy Institute named after academician O.V. Roman
3 Belorussian State Academy of Communication

DOI: 10.26456/pcascnn/2020.12.516

Original article

Abstract: 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 of pulses. It was found that the highest intensity of the bands of AlO suboxide and AlN molecules is observed at 40 – 50 consecutive double pulses in a series. The size of the primary particles estimated using the high-resolution electron microscopy was mainly 30 – 40 nm, the particles were collected in agglomerates. The possibility of obtaining active forms of aluminum oxides and products of their interaction with oxygen and air nitrogen in a laser plasma deposited on a glass surface is shown by RAMAN methods.

Keywords: oxidized nanopowders Al, Al2O3, AlN, 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
  • Natalia A. Alekseenko – Head of the Research Laboratory of electronic probe analysis, Powder Metallurgy Institute named after academician O.V. Roman
  • Evgeniy S. Voropay – Dr. Sc., Full Professor, Professor of the Department of Laser Physics and Spectroscopy, Faculty of Physics, Belarusian State University
  • Maxim N. Kovalenko – Head of the Research Laboratory «Spectroscopic systems», Faculty of Physics, Belarusian State University
  • Maria P. Patapovich – Ph. D., Associate Professor of the Department of Mathematics and Physics, Belorussian State Academy of Communication
  • Anatoli P. Zajogin – Dr. Sc., Full Professor, Professor of the Department of Laser Physics and Spectroscopy, Faculty of Physics, Belarusian State University

Reference:

Bazzal, K.. Spectral studies of the Al2O3 and AlN nanopowder formation exposed aluminum by a series of twin laser pulses in the air atmosphere / K.. Bazzal, N.A. Alekseenko, E.S. Voropay, M.N. Kovalenko, M.P. Patapovich, A.P. Zajogin // Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials. — 2020. — I. 12. — P. 516-524. DOI: 10.26456/pcascnn/2020.12.516. (In Russian).

Full article (in Russian): download PDF file

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