Results 1 to 10 of about 34,051 (173)
Radiation-Induced Helium Bubbles in Metals. [PDF]
Materials (Basel), 2019 Helium (He) bubbles are typical radiation defects in structural materials in nuclear reactors after high dose energetic particle irradiation. In the past decades, extensive studies have been conducted to explore the dynamic evolution of He bubbles under various conditions and to investigate He-induced hardening and embrittlement.
Li SH, Li JT, Han WZ.
europepmc +4 more sources
Stability of multi-electron bubbles in liquid helium [PDF]
Physical Review B, 2008 The stability of multi-electron bubbles in liquid helium is investigated theoretically. We find that multi-electron bubbles are unstable against fission whenever the pressure is positive.
A. P. Volodin +10 more
core +2 more sources
Kinetic Monte Carlo Modeling of Helium Bubble Nucleation onto Oxides in the Fe‐Ti‐Y‐O System [PDF]
Small ScienceA kinetic Monte Carlo model is developed to simulate the introduction of transmutation helium (He) atoms into nanostructured ferritic alloys (NFAs) during neutron irradiation.
Chris Nellis, Céline Hin
doaj +2 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, 2022 The formation and migration of helium bubbles lead to performance degradation of structural materials in nuclear reactors. Intrinsic structures in nuclear materials can significantly influence the behavior and distribution of these helium bubbles under ...
Zhiying Gao +10 more
doaj +1 more source
Nuclear Materials and Energy, 2021 Helium bubbles produced by neutron irradiation can induce property deterioration in ferritic/martensitic (F/M) steels serving in nuclear reactor. To investigate helium-to-vacancy (He/V) ratio of helium bubbles during nucleation and growth in α-Fe ...
Jingyi Shi +4 more
doaj +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
Tungsten evolution under helium irradiation: Shape of bubbles by TEM and in-situ GISAXS analysis
Nuclear Materials and Energy, 2023 The evolution of the tungsten microstructure and properties under helium irradiation could cause problems for both operational and safety reasons in fusion reactors.
L. Corso +8 more
doaj +1 more source
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
Nuclear Materials and Energy, 2021 Comparison of defect formation in tungsten samples exposed only to a helium plasma and those exposed to both helium plasma and subsequent deuterium plasmas is performed via Doppler broadening spectroscopy in the positron annihilation technique (DBS-PA ...
Yi-Ming Lyu +11 more
doaj +1 more source