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EFFECT OF ION BEAM RADIATION ON THE MICROSTRUCTURE AND POROSITY OF DYSPROSIUM HAFNATE

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dc.contributor.authorUrusov, A. A.
dc.contributor.authorChuvikov, S. V.
dc.contributor.authorPolunin, K. K.
dc.contributor.authorTenishev, A. V.
dc.contributor.authorТенишев, Андрей Вадимович
dc.date.accessioned2024-12-25T10:50:09Z
dc.date.available2024-12-25T10:50:09Z
dc.date.issued2022
dc.description.abstractThis paper looks at the effect of ion beam radiation on a dysprosium hafnate material (Dy2O3 – HfO2) that can potentially serve as a neutron absorber. The study was based on a serial radiography with helium and nickel ions at the temperatures of 350 and 550oС to the doses of 20, 100, 200 and 300 dpa. Using scanning and transmission electron microscopy, the authors examined the mi-crostructure of specimens both in their initial state and after exposure. Electron probe microanalysis helped determine the concentration of the elements in the specimens. The paper demonstrates that exposure of dysprosium hafnate to a damaging dose of 20 dpa does not lead to any visible structural changes. When the dose exceeded 100 dpa, the authors observed changes in the surface morphology of the specimens and a gradual closing-up of process-related pores. Calculation results indicate that the swelling of the dysprosium hafnate specimens does not exceed 0.1% at the maximum accumulated radiation of 200 to 300 dpa. The authors would like to thank P. S. Dzhumaev, M. S. Staltsov and O. V. Emelia-nova for their support with scanning electron microscopy and electron probe microanalysis; D. P. Shornikov for his support with systematization and pro-. © 2022, Ore and Metals Publishing house. All rights reserved.
dc.format.extentС. 41-48
dc.identifier.citationEFFECT OF ION BEAM RADIATION ON THE MICROSTRUCTURE AND POROSITY OF DYSPROSIUM HAFNATE / Urusov, A.A. [et al.] // Tsvetnye Metally. - 2022. - 2022. - № 10. - P. 41-48. - 10.17580/tsm.2022.10.06
dc.identifier.doi10.17580/tsm.2022.10.06
dc.identifier.urihttps://www.doi.org/10.17580/tsm.2022.10.06
dc.identifier.urihttps://www.scopus.com/record/display.uri?eid=2-s2.0-85141401969&origin=resultslist
dc.identifier.urihttps://openrepository.mephi.ru/handle/123456789/27687
dc.relation.ispartofTsvetnye Metally
dc.subjectcessing of experimental data. аbsorbers
dc.subjectdysprosium hafnate
dc.subjection beam radiation
dc.subjectporosity
dc.subjectscan-ning
dc.subjecttransmission microscopy
dc.titleEFFECT OF ION BEAM RADIATION ON THE MICROSTRUCTURE AND POROSITY OF DYSPROSIUM HAFNATE
dc.typeArticle
dspace.entity.typePublication
oaire.citation.issue10
oaire.citation.volume2022
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