Diffusion mass transfer in ionic materials under intense electron irradiation

I. G. Bochkarev, S. A. Ghyngazov, T. S. Frangulyan, A. B. Petrova, A. V. Chernyavskii

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Abstract

The results of studies on the impact of an electron beam with the energy of 1-2 MeV on diffusion processes in materials with ionic bonds are presented in the paper. Used electron beam intensity is allowed to provide heating of the material to temperatures of 1600 K. Diffusion of Na, Mg, Al ions into single crystals KBr in the temperature range 573-883 K, Al ions in the NiO-AlO system at 1373-1573 K, was studied. Diffusion annealing carried out under thermal and radiation-thermal heating of the samples. Then diffusion coefficients were determined. It was found stimulating action of irradiation on diffusion processes of Mg, Al ions in Kbr and Al ions in the NiO-Al2O3 system, which consists in increasing the diffusion coefficients at radiation-thermal annealing. The observed effect is achieved by increasing the effective rate of diffusion jumps.

Original languageEnglish
Article number012104
JournalIOP Conference Series: Materials Science and Engineering
Volume168
Issue number1
DOIs
Publication statusPublished - 7 Feb 2017
Event12th International Conference Radiation-Thermal Effects and Processes in Inorganic Materials - Tomsk, Russian Federation
Duration: 4 Sep 201612 Sep 2016

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ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

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