Results 21 to 30 of about 4,677 (183)

Helium-induced damage behaviour in hot-rolled Ni-201/Inconel 617 alloy at elevated temperature

Nuclear Materials and Energy, 2023
Hot-rolled Ni-201/Inconel 617 bimetal composite plate with excellent high-temperature strength has acquired significant attention in molten salt reactors (MSRs).
Ruoyu Li, Zhenbo Zhu, Hefei Huang
doaj   +1 more source

A helium-induced shift in the temperature dependence of swelling [PDF]

Journal of Nuclear Materials, 1979
Abstract In an annealed austenitic alloy undergoing bombardment with 4 MeV Ni ions to doses between 1 and 70 dpa at 840, 900, 950, 1025, and 1100 K, the introduction of simultaneously-implanted helium at a rate of 20 appm He/dpa moves the swelling versus temperature curve up the temperature scale by 40 to 70 K. Co-implantation of hydrogen (deuterium)
Farrell, K., Packan, N. H.
openaire   +1 more source

Helium focused ion beam induced subsurface damage on Si and SiC substrates: experiments and generative deep neural network modeling via position-dependent input

Journal of Materials Research and Technology, 2023
Deep neural networks (DNNs) are reshaping many fields due to their end-to-end ability to learn directly from data, leading to outstanding performance, especially in image processing.
Qianhuang Chen, Miguel A. Gosalvez, Qi Li, Yan Xing   +3 more
doaj   +1 more source

Key Mechanistic Features of Swelling and Blistering of Helium-Ion-Irradiated Tungsten [PDF]

SSRN Electronic Journal, 2019
Helium-ion-induced swelling and blistering of single-crystal tungsten is investigated using a Helium Ion Microscope for site-specific dose-controlled irradiation (at 25 keV) with analysis by Helium Ion Microscopy, Atomic Force Microscopy and Transmission Electron Microscopy (cross-sectioning by Focused Ion Beam milling).
Frances I. Allen, Peter Hosemann, Mehdi Balooch   +2 more
openaire   +5 more sources

Swelling at high radiation damage levels of 120 and 240 dpa in 3.5 MeV self-ion irradiated ferritic/martensitic steels

Nuclear Engineering and Technology
The swelling behavior of ferritic/martensitic steels (FC92–B/-N, HT9, and Gr.92) was investigated following 3.5 MeV Fe++ ion irradiation. Tested alloys were helium-pre-implanted up to the peak contents of 120 and 240 appm with He/dpa ratio of 1 appm/dpa ...
Myeongkyu Lee, Geon Kim, Sangjoon Ahn
doaj   +1 more source

Effect of high dose helium ion irradiation on the surface microstructure of a new neutron multiplying Be−W alloy

工程科学学报, 2020
A neutron multiplier must be employed to obtain the proper tritium breeding rate and ensure the self-sustaining combustion of deuterium and tritium in fusion reactors, which represents a new and powerful solution for the energy problem.
Ping-ping LIU, Wen HU, Jian SONG, Yu-mei JIA, Qian ZHAN, Fa-rong WAN   +5 more
doaj   +1 more source

Enhanced irradiation swelling resistance in low activation Ti8VCrMnFeCu2 high entropy alloys: Exploring the role of heterogeneous nanoparticles

Journal of Materials Research and Technology
This study presents an in-depth analysis on the microstructural evolution of the low-activation Ti8VCrMnFeCu2 alloy under helium irradiation. The irradiation-induced vacancies and the change of Cu nanoprecipitates were characterized using slow positron ...
Yao Yu, Xiao Liu, Qianqian Wang, Qigui Yang, Ye Dong, Te Zhu, Peng Zhang, Runsheng Yu, Mingpan Wan, Xingzhong Cao   +9 more
doaj   +1 more source

Effect of CO2 on coal P-wave velocity under triaxial stress

International Journal of Mining Science and Technology, 2022
As P-wave velocity is sensitive to the variations in coal reservoir parameters, it is possible to monitor the injected CO2 through P-wave velocity during CO2 sequestration in coal.
Shuangjiang Zhu, Jianhong Kang, Youpai Wang, Fubao Zhou   +3 more
doaj   +1 more source

Helium irradiation induced micro-swelling and phase separation in pyrochlore Lu2Ti2O7 [PDF]

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 2015
Abstract Polycrystalline pyrochlore Lu2Ti2O7 was irradiated with 200 keV He+ ions at room temperature to fluences ranging from 2.0 × 1015 to 2.0 × 1017 He+/cm2. Irradiation-induced microstructural evolution was examined by grazing incidence X-ray diffraction and cross-sectional transmission electron microscopy.
Zhang, J., Wang, Y.Q., Tang, M., Sun, C., Yin, D.M., Li, N.   +5 more
openaire   +1 more source

Sensorized Engineered Tissues with Built‐in Thermoregulation and Nutrient Supply

Advanced Functional Materials, EarlyView.
This work introduces a granular hydrogel‐based tissue engineering platform that includes a closed‐loop temperature control to maintain 37°C and sustainably releases nutrients, thereby enabling cells to retain a high viability even if stored at room temperature for up to 24 h.
Antonia Georgopoulou, Jakob Schreiner, Miriam Filippi, Aiste Balciunaite, Robert K. Katzschmann, Esther Amstad   +5 more
wiley   +1 more source