Zobrazeno 1 - 10
of 24
pro vyhledávání: '"O. I. Radkevych"'
Autor:
O. P. Budnyk, R. M. Vernydub, O. I. Kyrylenko, P. G. Lytovchenko, O. I. Radkevych, D. P. Stratilat, V. P. Tartachnyk
Publikováno v:
Âderna Fìzika ta Energetika, Vol 23, Iss 2, Pp 116-121 (2022)
The homo-transitional original and irradiated by electrons with E = 2 MeV; F = 5.9⋅1014 cm-2 ÷ 8.2⋅1016 cm-2 GaP LEDs were studied. The effect of radiation treatment on their electrical and optical characteristics was studied; the results of iso
Externí odkaz:
https://doaj.org/article/c1330e8d9e104adbadc796d97b4f71a7
Autor:
O. V. Konoreva, P. G. Litovchenko, O. I. Radkevych, V. M. Popov, V. P. Tartachnyk, V. V. Shlapatska
Publikováno v:
Âderna Fìzika ta Energetika, Vol 20, Iss 2, Pp 164-169 (2019)
ight emitting diodes based on gallium arsenide-phosphide solid solutions were studied. Negative differential resistance regions were identified at lower temperatures T ≤ 130 K. Irradiation of diodes by electrons (E = 2 MeV) leads to the increase in
Externí odkaz:
https://doaj.org/article/c2a89d9cd8ff4a87a4d147c29515f8fd
Autor:
R.M. Vernydub, V.P. Tartachnyk, O. I. Radkevych, O. V. Konoreva, D.P. Stratilat, O.I. Kyrylenko
Publikováno v:
Acta Physica Polonica A. 140:141-144
Autor:
O.V. Konoreva, V.P. Tartachnyk, M.B. Pinkovska, G. Gaydar, Ya. М. Olikh, I. Petrenko, Ye. Maliy, O. I. Radkevych
Publikováno v:
Superlattices and Microstructures. 104:316-320
The bond models are presented that explain the S-type anomaly of GaP LEDs’ electrical characteristics at temperatures Т ≤ 120 K. A possible mechanism of negative differential resistance appearing in current-voltage characteristics is proposed, b
Autor:
O. I. Radkevych, O.V. Konoreva, M.B. Pinkovska, Ya. M. Olikh, V.P. Tartachnyk, V.V. Shlapatska
Publikováno v:
Superlattices and Microstructures. 102:88-93
Acoustic-excitant interaction of GaAsP light emitting diodes (initial and irradiated by 2 MeV electrons) was studied. Structure based on GaAs 1 - х P х solid solutions, grown by epitaxy from the vapor phase, were the object of the research. It was
Publikováno v:
Materials Science. 47:696-702
We study the electrochemical and microelectrochemical characteristics and the microhardness of a fragment of a pipe made of 17G1SU steel with a weld made by FOX EV 50, Basic One, and UONII-13/55R electrodes. The corrosion potentials of different laye
Publikováno v:
Materials Science. 47:569-573
We have studied the influence of defects in welded joints of 17G1SU pipe steel performed by manual electric arc method with UONII 13/55R, FOX EV 50 (Bohler), and Basic One (Lincoln) electrodes on the serviceability of welded structures in air and env
Publikováno v:
Materials Science. 45:893-898
We study the corrosion and corrosion-mechanical behavior of nickel-chromium coatings deposited on 30KhMA steel by the plasma-powder surfacing. It is shown that these coatings exhibit high corrosion resistance both in the vapor-gas and liquid phases o
Publikováno v:
Materials Science. 44:653-658
Four experimental industrial melts of 06Kh20N8M3D2L cast ferritic-austenitic steel were obtained. Their susceptibility to hydrogen-sulfide stress-corrosion cracking is found and the influence of alloying components (Cr, Al, and Ti) on the resistance
Publikováno v:
Materials Science. 41:833-838
We study the tendency of corrosion-proof steels of the martensitic, martensite-ferritic, austenitic, austenite-martensitic, and ferrite-austenitic classes to corrosion cracking in hydrogen-sulfide-containing media. We have established that austenitic