Effects of transition metal carbide dispersoids on helium bubble formation in dispersion-strengthened tungsten [PDF]
Scientific Reports, 2023 The formation of helium bubbles and subsequent property degradation poses a significant challenge to tungsten as a plasma-facing material in future long-pulse plasma-burning fusion reactors.
Ashrakat Saefan +7 more
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Anomalous shape effect of nanosized helium bubble on the elastic field in irradiated tungsten [PDF]
Scientific Reports, 2021 Bubble pressure and elastic response in helium-irradiated tungsten are systematically investigated in this study. An anomalous shape effect is found that the radial normal stress and mean stress distributions around a nanosized void or bubble are far ...
Xinlong Huang +2 more
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The Shock-Induced Deformation and Spallation Failure of Bicrystal Copper with a Nanoscale Helium Bubble via Molecular Dynamics Simulations [PDF]
Nanomaterials, 2023 Both the nanoscale helium (He) bubble and grain boundaries (GBs) play important roles in the dynamic mechanical behavior of irradiated nanocrystalline materials.
Qi Zhu, Jianli Shao, Pei Wang
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Engineering self-organising helium bubble lattices in tungsten [PDF]
Scientific Reports, 2017 The self-organisation of void and gas bubbles in solids into superlattices is an intriguing nanoscale phenomenon. Despite the discovery of these lattices 45 years ago, the atomistics behind the ordering mechanisms responsible for the formation of these ...
R. W. Harrison +3 more
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Comparative study on radiation resistance of WTaCrV high-entropy alloy and tungsten in helium-containing conditions [PDF]
Scientific ReportsW and W-based high-entropy alloys are promising candidates for plasma-facing materials in fusion reactors. While irradiation studies on W have revealed a tendency for helium (He) bubble formation and radiation-induced defects, investigations of WTaCrV ...
Amin Esfandiarpour +3 more
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Cryogenic helium subsurface pressurization in terrestrial and low-gravity: experiments and flow visualization [PDF]
npj MicrogravityPressurization of cryogenic propellant storage tanks is required for propellant thermodynamic conditioning and for enabling propellant transfer from a supply tank to another tank or an engine.
Jinze Yu +5 more
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Strength of bulk aluminum-boron alloys containing helium produced by 10B(n,α)7Li reaction in nuclear reactor [PDF]
HeliyonThe study of metals and alloys containing helium has garnered significant attention within the nuclear energy community. However, there is limited research on the mechanical behavior of bulk alloys implanted with helium.
Kaiguo Chen +6 more
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Nuclear Materials and Energy, 2023 The paper presents a detailed analysis of helium (He) bubble development in ODS-EUROFER steel caused by helium ion implantation in different regimes, with a particular attention to the role of the oxide nanoparticles in promoting the growth of He bubbles,
O.V. Emelyanova +6 more
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The Process and Mechanism of Preparing Nanoporous Silicon: Helium Ion Implantation
Nanomaterials, 2023 Ion implantation is an effective way to control performance in semiconductor technology. In this paper, the fabrication of 1~5 nm porous silicon by helium ion implantation was systemically studied, and the growth mechanism and regulation mechanism of ...
Jianguang Wang +4 more
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The effect of sink strength on helium bubble formation at elevated temperatures
Nuclear Analysis, 2022 In present study, the model Fe–9Cr alloy and two nanostructured ferritic alloys (NFAs) CNA1 and 9YWTV with high application potential in advanced nuclear power systems were selected to systematically investigate the effect of sink strength on helium ...
Zhanfeng Yan, Yanru Lin
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