Results 11 to 20 of about 22,368 (209)

Study of Helium Swelling and Embrittlement Mechanisms in SiC Ceramics [PDF]

open access: yesCrystals, 2022
This work is devoted to the study of the radiation damage kinetics and subsequent embrittlement of the near-surface layer of SiC ceramics subjected to irradiation with low-energy He2+ ions.
Kymbat M. Tynyshbayeva   +5 more
doaj   +6 more sources

Key mechanistic features of swelling and blistering of helium-ion-irradiated tungsten [PDF]

open access: yesSSRN Electronic Journal, 2019
Helium-ion-induced swelling and blistering of single-crystal tungsten is investigated using a Helium Ion Microscope for site-specific dose-controlled irradiation (at 25 keV) with analysis by Helium Ion Microscopy, Atomic Force Microscopy and Transmission
Allen, FI, Balooch, M, Hosemann, P
core   +7 more sources

Mechanical and helium swelling responses of K-RAFM steels to Fe ion irradiation and helium implantation

open access: yesNuclear Materials and Energy
This study explores the effects of Fe ion irradiation and helium implantation on the mechanical and microstructural behaviors of K-RAFM steels. Through micropillar compression tests, we observed irradiation hardening, which manifested as an increase in ...
Sangeun Kim   +9 more
doaj   +2 more sources

Study of the Resistance of Lithium-Containing Ceramics to Helium Swelling

open access: yesCeramics
The paper presents the results of studies of the resistance of lithium ceramics to helium swelling during its accumulation in the structure of the near-surface layer, and the identification of the three types of lithium ceramics most resistant to ...
Artem L. Kozlovskiy   +3 more
doaj   +2 more sources

Swelling of Highly Neutron Irradiated Beryllium and Titanium Beryllide

open access: yesJournal of Nuclear Engineering, 2022
The swelling of beryllium and titanium beryllide after irradiation at 70–750 °C to neutron fluences of (0.25–8) · 1022 cm−2 (E > 1 MeV) was measured using methods of immersion, dimension, and helium pycnometry.
Vladimir Chakin   +3 more
doaj   +1 more source

Ab initio investigation of properties and mobility of helium defects in La2Sn2O7 pyrochlore

open access: yesNuclear Materials and Energy, 2022
The accumulated helium atoms mitigate the physical properties of nuclear waste forms through long-time radionuclide decay and thus cause the safety concern. In this work, first-principles calculations were carried out to investigate the effects of helium
Xiaolong Li   +8 more
doaj   +1 more source

Effect of Irradiation with Low-Energy He2+ Ions on Degradation of Structural, Strength and Heat-Conducting Properties of BeO Ceramics

open access: yesCrystals, 2022
The paper is devoted to the study of radiation-induced damage kinetics in beryllium oxide ceramics under irradiation with low-energy helium ions with fluences of 1015–1018 ion/cm2.
Maxim V. Zdorovets   +3 more
doaj   +1 more source

Helium irradiation effects in polycrystalline Si, silica, and single crystal Si [PDF]

open access: yes, 2012
Transmission electron microscopy (TEM) has been used to investigate the effects of room temperature 6 keV helium ion irradiation of a thin (≈55 nm thick) tri-layer consisting of polycrystalline Si, silica, and single-crystal Si.
C. J. Pawley   +9 more
core   +1 more source

Peculiarities of helium porosity evolution in the ferritic–martensitic steels produced by spark plasma sintering

open access: yesNuclear Materials and Energy, 2018
Oxide dispersion strengthened (ODS) ferritic–martensitic steels are considered as promising structural materials for fusion reactors, as well as for active zone of new generations fast reactors.
I.I. Chernov   +4 more
doaj   +1 more source

Study of Resistance to Helium Swelling of Lithium-Containing Ceramics under High-Temperature Irradiation

open access: yesCrystals, 2021
The aim of this work was to study resistance to helium accumulation processes in the structure of the surface layer of lithium-containing ceramics and the subsequent destruction and embrittlement processes, depending on radiation fluence.
Dmitriy I. Shlimas   +4 more
doaj   +1 more source

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