Formation of helium-bubble networks in tungsten
Sign Up to like & getrecommendations! Published in 2018 at "Acta Materialia"
DOI: 10.1016/j.actamat.2018.07.075
Abstract: Abstract The nucleation and subsequent growth of helium bubbles in bulk tungsten is investigated using molecular dynamics simulations. By considering a setting that includes the diffusion process of helium clusters, we study their attachment to… read more here.
Keywords: helium bubble; formation helium; bubble networks; networks tungsten ... See more keywords
Helium bubble formation in Pb-16Li within the breeding blanket
Sign Up to like & getrecommendations! Published in 2017 at "Fusion Engineering and Design"
DOI: 10.1016/j.fusengdes.2017.05.100
Abstract: Abstract Helium is a by-product of the tritium formation reaction by neutron bombardment of lithium. The solubility of helium is estimated to be extremely low, which may result into gas pockets formation. These pockets then… read more here.
Keywords: helium bubble; blanket; bubble formation; breeding blanket ... See more keywords
Impact of a dense helium-bubble superlattice on the deformation of copper by twinning
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Nuclear Materials"
DOI: 10.1016/j.jnucmat.2018.05.056
Abstract: Abstract Recent experimental work on helium-irradiated single-crystal (SC) and nano-twinned (NT) copper has shown that the formation of a helium bubble superlattice has a dramatic effect on the critical resolved shear stress of twin formation… read more here.
Keywords: bubble superlattice; helium bubble; copper; stress ... See more keywords
In-situ TEM investigation of nano-scale helium bubble evolution in tantalum-doped tungsten at 800°C
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Nuclear Materials"
DOI: 10.1016/j.jnucmat.2021.152910
Abstract: Abstract 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… read more here.
Keywords: situ tem; helium bubble; tantalum; helium ... See more keywords
Study on Helium Bubble Coalescence in the Slip Plane of Titanium
Sign Up to like & getrecommendations! Published in 2021 at "Fusion Science and Technology"
DOI: 10.1080/15361055.2021.1927583
Abstract: Abstract Helium bubble growth and coalescence in the slip plane as well as the influence on substrate were studied using the molecular dynamics method. In the slip plane, the helium bubbles grow first along the… read more here.
Keywords: coalescence slip; slip plane; helium bubble; helium ... See more keywords
In-Situ Helium Implantation and TEM Investigation of Radiation Tolerance to Helium Bubble Damage in Equiaxed Nanocrystalline Tungsten and Ultrafine Tungsten-TiC Alloy
Sign Up to like & getrecommendations! Published in 2020 at "Materials"
DOI: 10.3390/ma13030794
Abstract: The use of ultrafine and nanocrystalline materials is a proposed pathway to mitigate irradiation damage in nuclear fusion components. Here, we examine the radiation tolerance of helium bubble formation in 85 nm (average grain size)… read more here.
Keywords: bubble damage; helium bubble; implantation; damage ... See more keywords