Effect of Proton Irradiation on the Defect Evolution of Zr/Nb Nanoscale Multilayers
| Parent link: | Metals Vol. 10, iss. 4.— 2020.— [535, 12 p.] |
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| Corporate Author: | |
| Other Authors: | , , , , , , , |
| Summary: | Title screen 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 µm were irradiated by 900-keV protons using a pelletron-type electrostatic accelerator with an ion current of 2 µA 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–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
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| Subjects: | |
| Online Access: | http://earchive.tpu.ru/handle/11683/64870 https://doi.org/10.3390/met10040535 |
| Format: | Electronic Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=662149 |