Results 11 to 20 of about 458,757 (252)
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
doaj +2 more sources
Atomistically-informed hardening and kinetics models of helium bubble in irradiated tungsten
International Journal of Plasticity, 2023 Changqiu Ji +3 more
semanticscholar +3 more sources
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
doaj +2 more sources
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
doaj +1 more source
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
doaj +1 more source
In-situ TEM investigation of nano-scale helium bubble evolution in tantalum-doped tungsten at 800°C
Journal of Nuclear Materials, 2021 The aim of this work is to probe the helium induced defect production and accumulation in 40 keV He+ irradiated polycrystalline W and its alternative alloy W-5wt.%Ta using transmission electron microscopy (TEM) combined with in-situ helium irradiation at
I. Ipatova +5 more
semanticscholar +1 more source
Multielectron Bubbles in Liquid Helium [PDF]
Europhysics Letters (EPL), 1987 We have investigated multielectron bubbles in liquid 4He, which develop when the charged helium surface undergoes an electrohydrodynamic instability. Well-defined bubbles with charges ranging from 105 to 107 electrons are easily generated. Oscillations and fissioning of the bubbles are reported, and a new upper limit on their lifetime is set.
Albrecht, Uwe, Leiderer, Paul
openaire +2 more sources
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
doaj +1 more source
Bubble formation in helium-implanted nanostructured ferritic alloys at elevated temperatures
Acta Materialia, 2021 Yan-Ru Lin +7 more
semanticscholar +3 more sources