1. Effect of Proton Irradiation on the Defect Evolution of Zr/Nb Nanoscale Multilayers
- Author
-
Dmitriy Krotkevich, Maxim Syrtanov, Andrey G. Kobets, Anton Lomygin, Egor Kashkarov, Krzysztof Siemek, Roman Laptev, and Yuriy S. Bordulev
- Subjects
lcsh:TN1-997 ,Materials science ,Proton ,дефекты ,XRD ,спектроскопия ,GD-OES ,microstructure ,Analytical chemistry ,positron annihilation spectroscopy ,протонные излучения ,02 engineering and technology ,01 natural sciences ,Positron annihilation spectroscopy ,Zr/Nb ,0103 physical sciences ,Radiation damage ,General Materials Science ,Irradiation ,Spectroscopy ,defects ,lcsh:Mining engineering. Metallurgy ,010302 applied physics ,Glow discharge ,микроструктура ,Metals and Alloys ,proton irradiation ,многослойные покрытия ,021001 nanoscience & nanotechnology ,Microstructure ,nanoscale multilayer coating ,0210 nano-technology ,Doppler broadening - Abstract
Nanoscale multilayer coatings (NMCs) with different crystal structures are considered as capable of self-healing after radiation damage due to the recombination of vacancies and interstitials. This work is focused on a defect distribution study of NMCs based on Zr/Nb layers (25/25 nm and 100/100 nm) after proton irradiation. Coatings with a total thickness of 1.05 ±, 0.05 µ, m were irradiated by 900-keV protons using a pelletron-type electrostatic accelerator with an ion current of 2 µ, A for durations of 60 min to 120 min. The influence of the irradiation effect was studied by X-ray diffraction analysis (XRD), glow discharge optical emission spectrometry (GD&ndash, OES), and Doppler broadening spectroscopy using a variable energy positron beam. The results obtained by these methods are compatible and indicate that defect concentration of Zr/Nb NMCs remains unchanged or slightly decreases with increasing irradiation time.
- Published
- 2020