A.Kh. Gilmutdinov - Dr.Sc. (Eng.), Associate Professor, Kazan National Technical Research University named after A.N. Tupolev. E-mail: agilmutdinov@rambler.ru
M.M. Gil-metdinov - Ph.D. candidate, Kazan National Technical Research University named after A.N. Tupolev. E-mail: marat-kzn@list.ru

R.I. Batalov - Ph.D. (Phys.-Math.), Senior Research Scientist, E.K. Zavoyskii Kazan Physical-Technical Institute of RAS E-mail: batalov@kfti.knc.ru R.M. Bayazitov - Dr.Sc. (Phys.-Math.), Leading Research Scientist, E.K. Zavoyskii Kazan Physical-Technical Institute of RAS, Kazan State Power Engineering University E-mail: batalov@kfti.knc.ru I.A. Faizrakhmanov - Dr.Sc. (Phys.-Math.), Chief Research Scientist, E.K. Zavoyskii Kazan Physical-Technical Institute of RAS E-mail: batalov@kfti.knc.ru G.D. Ivlev - Ph.D. (Phys.-Math.), Senior Research Scientist, Belarussian State University, Minsk, Belarus

A.V. Morozov1

1 Rostov State Transport University (Rostov-on-Don, Russia)

1 geo_pro@mail.ru

L.A. Bliznyuk1, N.V. Lyubetsky2, A.K. Letko3, T.P. Petrochenko4, V.I. Kasko5

1–4 Scientific and Practical Center of the National Academy of Sciences of Belarus
for Materials Science (Minsk, Republic of Belarus)
4 tanya-petr@physics.by