Results 191 to 200 of about 22,368 (209)

Effect of helium on dislocation loop formation and radiation swelling in SiC

Journal of Nuclear Materials, 2004
Abstract SiC and SiC/SiC composites are considered as candidate materials for fusion reactors. In a fusion reactor environment, helium atoms will be produced in SiC up to very high concentrations (15 000–20 000 at. ppm) and therefore it is very important to understand how helium effects radiation swelling of SiC.
A.I Ryazanov, A.V Klaptsov, A Kohyama, Y Katoh, H Kishimoto   +4 more
openaire   +1 more source

Gas-induced swelling in helium-implanted copper during annealing

Journal of Nuclear Materials, 1992
A detailed transmission electron microscopy (TEM) investigation of the gas porosity (GP) in pure copper homogeneously implanted with helium at 323 K to a concentration of cHe ⋍ 300 appm as a result of postimplantation annealing for up to 0.5 h at temperatures between 838 and 1193 K has been carried out.
openaire   +1 more source

Localized Helium Implantation in SiCf/SiCm Composites Comparing Fiber and Matrix Swelling

JOM, 2019
Composites formed by SiC fiber reinforcement of a SiC matrix are materials of interest for use in high temperature, high strength, and high irradiation condition applications. These materials have been considered for use in both fusion and fission reactors due to their excellent physical and neutronic properties.
M. V. Ambat, D. Frazer, M. P. Popovic, M. Balooch, S. Stevenson, A. Scott, J. Kabel, P. Hosemann   +7 more
openaire   +1 more source

The influence of thermal vacancies on helium-induced volume swelling in silicon carbide

Journal of Nuclear Materials, 1990
On etudie la formation de vides et de bulles dans SiC irradie par des neutrons, le gonflement de SiC contenant du bore lors du recuit apres irradiation ainsi que les microstructures a l'aide de la MET, afin d'evaluer l'emploi possible de SiC dans les reacteurs de fusion ...
T. Suzuki, T. Iseki, T. Mori, J.H. Evans
openaire   +1 more source

Helium induced swelling and tritium trapping mechanisms in irradiated beryllium: a comprehensive approach

Fusion Engineering and Design, 1995
Abstract Since beryllium is considered one of the best neutron multipliers for the blanket of a fusion reactor, several studies have been initiated to evaluate its behaviour under irradiation for both typical operating and accidental conditions. In the present work the effects of neutron irradiation on the mechanical properties of beryllium were ...
Scaffidi-Argentina, F., Dalle Donne, M., Ferrero, C., Ronchi, C.   +3 more
openaire   +1 more source

New Aspects of Gas-Induced Swelling in Helium-Implanted Nickel during Annealing

1991
We review results of an extensive study on bubble coarsening in nickel and provide some useful additional data which round off our picture deduced from the combined experimental evidence and from theoretical considerations: During annealing the bubble structure near the surface and near grain boundaries coarsens faster than in the bulk, leading to ...
V. N. Chernikov, P. R. Kazansky, H. Trinkaus, P. Jung, H. Ullmaier   +4 more
openaire   +1 more source

Bubble Swelling in Ferritic/Martensitic Steels Exposed to Radiation Environment with High Production Rate of Helium

Materials, 2021
Jarmila Degmova, Pavol Noga, Vladimir Krsjak   +2 more
exaly  

Study of Radiation Resistance to Helium Swelling of Li2ZrO3/LiO and Li2ZrO3 Ceramics

Crystals, 2022
Dmitriy I Shlimas, Maxim V Zdorovets, Artem Kozlovskiy   +2 more
exaly  

The effect of helium on cavity swelling in dual-ion irradiated Fe and Fe-10Cr ferritic alloys

Journal of Nuclear Materials, 2022
Yan-Ru Lin, Arunodaya Bhattacharya, Steven J Zinkle   +2 more
exaly  

Void swelling upon neutron-irradiation in helium preinjected vanadium

Journal of Nuclear Materials, 1976
M. Cambini, J. Bressers, M. Heerschap
openaire   +1 more source