Results 171 to 180 of about 5,476 (206)

Temperature-Dependent Swelling in Helium Ion Irradiated Vanadium

Nuclear Technology
Weiping Zhang, Yiheng Chen, Liping Guo   +2 more
exaly   +2 more sources

Helium bubble formation and swelling in metals

Journal of Nuclear Materials, 1981
Abstract The effect of a continuous production of helium on swelling is analyzed using an improved equation of state for gaseous helium that incorporates both a gas-kinetic as well as a static pressure for densely packed helium. In the absence of a bias, bubble swelling is characterized by two temperature regimes.
B.B. Glasgow, A. Si-Ahmed, W.G. Wolfer, F.A. Garner   +3 more
openaire   +1 more source

Swelling of SiC under helium implantation

Journal of Applied Physics, 2005
Single crystals 4H-SiC were implanted with 50 keV helium ions at temperatures up to 600 °C and fluences in the range 1×1016–1×1017cm−2. The helium implantation-induced swelling was studied through the measurement of the step height. The different contributions of swelling were determined by combining simulations of x-ray diffraction curves and ...
S. Leclerc, A. Declémy, M. F. Beaufort, C. Tromas, J. F. Barbot   +4 more
openaire   +1 more source

Lattice swelling and modulus change in a helium-implanted tungsten alloy: X-ray micro-diffraction, surface acoustic wave measurements, and multiscale modelling [PDF]

Acta Materialia, 2015
Using X-ray micro-diffraction and surface acoustic wave spectroscopy, we measure lattice swelling and elastic modulus changes in a W-1% Re alloy after implantation with 3110 appm of helium.
Felix Hofmann, D Nguyen-Manh, M R Gilbert   +2 more
exaly   +2 more sources

Effect of helium on void swelling in molybdenum

Journal of Nuclear Materials, 1981
Abstract Simultaneous irradiation of molybdenum with helium and heavy ions (Ta 3+ ) using a dual beam facility resulted in continued void nucleation in molybdenum to high dose levels, but the added helium had no measurable effect on the void swelling or swelling rate when compared with results for heavy ion irradiation without helium. Pretreatment by
J.L. Brimhall, L.A. Charlot
openaire   +1 more source

Effects of Helium on Void Swelling in Vanadium

Nuclear Technology, 1976
AbstractVoid formation and swelling were studied in nickel-ion-bombarded vanadium, both with and without the presence of helium. Helium has a significant effect on void nucleation when the defect generation rate is low. At high defect generation rates, helium has little effect on void nucleation and the resultant swelling.
Brimhall, J. L., Simonen, E. P.
openaire   +1 more source

Influence of Helium on Swelling of Steels

1985
In this work, we have studied the effect of helium and its injection mode on the microstructure of Type 316 and titanium-modified Type 316 stainless steels, both in their solution-annealed and cold-worked states. Irradiations have been conducted in a dual-beam accelerator to doses up to 150 dpa in a wide range of temperatures, from 550 to 750°C ...
V Levy, D Gilbon, C Rivera
openaire   +1 more source

Helium release and lattice swelling in nickel foil irradiated by multiply-energy helium ions

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 2019
Abstract Pure nickel foil was irradiated with multiple-energy helium ions at room temperature. Using elastic recoil detection (ERD), the depth profile of helium concentration in nickel foil after the irradiation was investigated. Result showed that very little helium atoms distributed in the regions near two free surfaces, indicating the occurrence ...
Jie Gao, Hefei Huang, Jizhao Liu, Qiantao Lei, Chunjie Wang, Zhibin Han, Guo Yang, Yan Li   +7 more
openaire   +1 more source

Helium implantation in Si (100): Swelling, microstructure, and mechanical property changes

Journal of Applied Physics, 2022
Microstructural changes induced by helium implantation in materials lead to volumetric swelling and mechanical property changes. How these properties are linked and establishing direct relationships can be difficult due to the underlying material’s microstructure evolution.
Xi Huang, Yujun Xie, Mehdi Balooch, Sean Lubner, Peter Hosemann   +4 more
openaire   +1 more source

Effect of helium production on swelling of F82H irradiated in HFIR

Journal of Nuclear Materials, 2000
Abstract The effects of helium production and heat treatment on the swelling of F82H steel irradiated in the HFIR to 51 dpa have been investigated using 10B, 58Ni and 60Ni-doped specimens. The swelling of tempered F82H-std and F82H doped with 10B irradiated at 400°C ranged from 0.52% to 1.2%, while the swelling of the non-tempered F82H doped with ...
E Wakai, N Hashimoto, Y Miwa, J.P Robertson, R.L Klueh, K Shiba, S Jistukawa   +6 more
openaire   +1 more source