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Št. zadetkov: 7
Structural Insights and hydrogen retention in amorphous and crystalline tungsten oxide films
Janez Zavašnik, Vasyl Shvalya, Kristof Kremer, Thomas Schwarz-Selinger, Wolfgang Jacob
Izvirni znanstveni članek
Oznake: tungsten;vodikovi izotopi;strukture kristalov;
We investigated structural characteristics of and hydrogen isotope interactions with thermally and electro chemically synthesized tungsten oxide (W-oxide) thin films (≤50 nm). Specifically, we assessed whether elec trochemically synthesized W-oxide could serve as a suitable proxy for thermally grown ...
Leto: 2025 Vir: Institut Jožef Stefan (IJS)
Influence of near-surface helium on the deuterium retention and uptake in tungsten
Sabina Markelj, Thomas Schwarz-Selinger, Andreja Šestan, Janez Zavašnik, Mitja Kelemen
Izvirni znanstveni članek
Oznake: deuterium retention;displacement damage;
The effect of near-surface helium (He) on deuterium (D) retention and uptake into the bulk of tungsten (W) was investigated. To quantify the He influence on D uptake, He was implanted close to the surface with 3 keV energy at different fluences and different temperatures. 20 MeV W irradiation was pe ...
Leto: 2025 Vir: Institut Jožef Stefan (IJS)
Electron screening in lithium-induced nuclear reactions
Aleksandra Cvetinović, Matej Lipoglavšek, Mitja Kelemen, Miha Čekada, Sabina Markelj, Thomas Schwarz-Selinger
Izvirni znanstveni članek
Oznake: electron screening;
Leto: 2025 Vir: Institut Jožef Stefan (IJS)
Deuterium retention in tungsten, tungsten carbide and tungsten-ditungsten carbide composites
Petra Jenuš, Anže Abram, Saša Novak, Mitja Kelemen, Matic Pečovnik, Thomas Schwarz-Selinger, Sabina Markelj
Izvirni znanstveni članek
Oznake: (di)volframov karbid;analiza z jedrskimi reakcijami;termalna desorpcijska spektroskopija;tungsten;(di)tungsten carbide;deuterium;nuclear reaction analysis;thermal desorption spectroscopy;
The selection of the most suitable material for the EU DEMO divertor is still underway. Current research focuses on the development of tungsten-based materials for plasma-facing applications. In addition to other requirements, the candidate material must also exhibit low intrinsic hydrogen isotope r ...
Leto: 2023 Vir: Institut Jožef Stefan (IJS)
Microstructural analysis of tungsten single crystals irradiated by MeV W ions
Janez Zavašnik, Andreja Šestan, Thomas Schwarz-Selinger, Esther Punzón Quijorna, Mitja Kelemen, Jan Predrag, Sabina Markelj
Izvirni znanstveni članek
Oznake: obsevanje s težkimi ioni;strukturne poškodbe;heavy-ion irradiation;structural defects;
We investigated the microstructural evolution of W(111) single crystals under high-energy self-ion irradiation at 290 K and 800 K, using complementary characterization techniques, including Scanning electron microscopy (SEM), Transmission electron microscopy (TEM), Rutherford backscattering spectrom ...
Leto: 2025 Vir: Institut Jožef Stefan (IJS)
Deuterium retention and transport in ion-irradiated tungsten exposed to deuterium atoms
Sabina Markelj, Janez Zavašnik, Andreja Šestan, Thomas Schwarz-Selinger, Mitja Kelemen, Esther Punzón Quijorna, Gabriele Alberti, Mateo Passoni, David Dellasega
Izvirni znanstveni članek
Oznake: deuterium;tungsten;grain boundaries;transport;displacement damage;retention;
The influence of grain boundaries on deuterium (D) retention and transport was investigated in nanocrystalline tungsten (W) by exposing the samples to sub eV D atoms. Thin tungsten films with nanometer-sized grains were produced by pulsed laser deposition on tungsten substrates. Their grain size was ...
Leto: 2024 Vir: Institut Jožef Stefan (IJS)
ǂThe ǂeffect of nanocrystalline microstructure on deuterium transport in displacement damaged tungsten
Sabina Markelj, Thomas Schwarz-Selinger, Mitja Kelemen, Esther Punzón Quijorna, Janez Zavašnik, Andreja Šestan, David Dellasega, Gabriele Alberti, Mateo Passoni
Izvirni znanstveni članek
Oznake: transport;grain boundaries;deuterium;tungsten;displacement damage;
The influence of grain boundaries (GBs) on the deuterium (D) transport and the creation of defects in nanocrystalline tungsten (W) films deposited on a W substrate was studied. Samples with three different grain sizes were produced for this purpose: a sample with a film having nanometer-size grains, ...
Leto: 2023 Vir: Institut Jožef Stefan (IJS)
Št. zadetkov: 7
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