Results 51 to 60 of about 5,476 (206)

SINGLE AND DUAL ION IRRADIATION EFFECTS ON SWELLING BEHAVIOR OF EP-450 FERRITIC-MARTENSITIC STEEL

East European Journal of Physics, 2015
In spite of all effects of researchers, up to now there is no understanding of the main radiation phenomena advances, in particular, of the swelling at simultaneously effect of damage dose with generated helium and hydrogen. Imperceptions of this problem
Y. E. Kupriiyanova, V. V. Bryk, A. S. Kalchenko, V. N. Voyevodin   +3 more
doaj  

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

Characterization of Structure, Properties, and Energetic Performance of a 1:1 Ammonium Dinitramide‐3,4‐Diaminofurazan Cocrystal

Propellants, Explosives, Pyrotechnics, EarlyView.
Ammonium dinitramide (ADN) and 3,4‐Diaminofurazan (DAF) form a 1:1 energetic cocrystal. We report its crystal structure and spectroscopic signature and evaluate thermal stability, decomposition behavior, hygroscopicity, and combustion properties. Propellant performance calculations benchmark the material against guanylurea dinitramide (GuDN) and ...
Peter Schultz, Uwe Schaller, Thomas Heintz   +2 more
wiley   +1 more source

Exploding Bridgewire (EBW) Detonators: An Example of Synergistic Multiphysics

Propellants, Explosives, Pyrotechnics, EarlyView.
ABSTRACT Exploding bridgewire (EBW) detonators are highly temporally reproducible explosive devices that require the rapid discharge of a high‐voltage capacitance to operate and so are immune to most of the accidental hazards associated with traditional electric detonators.
P. J. Rae, T. A. Feagin, E. M. Heatwole, R. C. Rettinger   +3 more
wiley   +1 more source

Defect landscape engineering suppresses helium damage in ceramics

Communications Materials
Helium accumulation in structural ceramics used in nuclear, fusion, and aerospace systems causes swelling, cracking, and early failure, yet controlling this damage has remained elusive.
Nabil Daghbouj, Ahmed Tamer AlMotasem, Bingsheng Li, Vladimir Krsjak, Jan Duchoň, Fang Ge, Maciej Oskar Liedke, Andreas Wagner, Mohamed Bensalem, Fateh Bahadur, Frans Munnik, Miroslav Karlik, Anna Macková, Tomas Polcar, William J. Weber   +14 more
doaj   +1 more source

Chronic silencing of subsets of cortical layer 5 pyramidal neurons has a long‐term influence on the laminar distribution of parvalbumin interneurons and the perineuronal nets

Journal of Anatomy, Volume 246, Issue 4, Page 479-504, April 2025.
Chronic silencing of subsets of layer 5 projection neurons has distinct effects on the laminar distribution of PV interneurons and the perineuronal nets in the adult primary motor and somatosensory cortex. Abstract Neural networks are established throughout cortical development, which require the right ratios of glutamatergic and GABAergic neurons ...
Florina P. Szabó, Veronika Sigutova, Anna M. Schneider, Anna Hoerder‐Suabedissen, Zoltán Molnár   +4 more
wiley   +1 more source

3‐D Nanofabrication of Silicon and Nanostructure Fine‐Tuning via Helium Ion Implantation

Advanced Materials Interfaces, 2022
Despite the continued scaling down of semiconductor manufacturing, traditional lithography‐based nanofabrication only produces thin film structures, not 3‐D shapes.
Xiaolei Wen, Renwei Mao, Huan Hu
doaj   +1 more source

Reassessing the organic carbon budget in the Murchison meteorite through an extraction–recovery mass‐balance approach

Meteoritics &Planetary Science, EarlyView.
Abstract A substantial fraction of organic carbon in carbonaceous chondrites has long been described as “missing,” reflecting incomplete recovery and limited resolution of operationally defined organic components. Here, we present a quantitative reassessment of the carbon budget in the Murchison meteorite using an integrated extraction–recovery mass ...
Hina Dohi, Minako Hashiguchi, Koichi Mimura   +2 more
wiley   +1 more source

Understanding early-stage radiation damage in nuclear alloys through positron annihilation and semi-empirical modeling

npj Materials Degradation
The recognition of the early stage of radiation aging and the aggregation of point defects into nanometric clusters pose significant challenges for nuclear structural materials.
Vladimír Kršjak, Yamin Song, Veronika Lučanská, Stanislav Sojak, Pavol Noga, Martin Petriska, Branislav Stríbrnský, Sofia Gašparová, Igor Neuhold, Matej Kubiš, Dušan Vaňa, Tielong Shen, Vladimír Slugeň, Jarmila Degmová   +13 more
doaj   +1 more source

Helium effect on temperature-displacement rate equivalence in radiation-induced swelling of iron: A study by improved stochastic cluster dynamics

Nuclear Materials and Energy
In nuclear energy systems, understanding material behavior (e.g., swelling) under irradiation is critical for ensuring long-term stability and safety. While direct neutron irradiation experiments pose significant challenges, ion irradiation serves as an ...
Yi Hu, Fangqing Qian, Xiaolin Li, He Tong, Yange Zhang, Yichun Xu, Zhuoming Xie, Rui Liu, Xiang-Yan Li, Xuebang Wu, Xianping Wang, C.S. Liu   +11 more
doaj   +1 more source