A5020341766- Fusion materials and technologies
- Nuclear Materials and Properties
- Nuclear reactor physics and engineering
- Nuclear and radioactivity studies
- Hydrogen Storage and Materials
- Astro and Planetary Science
- Graphite, nuclear technology, radiation studies
- Muon and positron interactions and applications
- Metallurgical Processes and Thermodynamics
- Manufacturing Process and Optimization
- Hydrocarbon exploration and reservoir analysis
- Molten salt chemistry and electrochemical processes
- Methane Hydrates and Related Phenomena
- Catalysts for Methane Reforming
- Hydrogen embrittlement and corrosion behaviors in metals
- Nuclear Physics and Applications
University of the Basque Country
2022-2024
This work aims to fill a gap in the H transport database for niobium and vanadium, materials proposed fabrication of tritium extraction systems. The permeability, key parameter this application, has not been properly determined so far. Values are given H2 D2 permeability two different Nb samples from suppliers but with similar microstructure ∼300 °C 500 tested loading pressures 20 mbar mbar: ϕ(Nb/H2)[mol·m−1·s−1·Pa−0.5]=4.49·exp(−19,258T)ϕ(Nb/D2)[mol·m−1·s−1·Pa−0.5]=1.31·exp(−19,332T)For new...
The EUROFER reduced activation ferritic-martensitic (RAFM) steel is meant to be a firm candidate as structural material part of future fusion reactors. correct definition the transport parameters hydrogen isotopes in these materials turns out key issue this field, long it can affect operation reactor itself when quantifying fuel inventory well radiological safety whole facility. Traditionally diffusion limited regime (DLR) kind RAFM steels has been experimentally tested and values for...
Deuterium permeation through vanadium membranes in a wide range of pressures and the temperature ~250–550 °C was experimentally investigated. Measurements on same material were carried out three laboratories with different features for an extended characterization cross-check validation. A unified equation deuterium permeability pure (99%) provided as Φ=1.27×10−4·e−8667/T mol m−1 s−1 Pa−0.5, which represents significant progress transport properties this material, given spread data, can...
The efficient operation of the liquid breeding blankets relies on correct definition transport parameters protium, deuterium and tritium in PbLi metals with an eutectic composition. This is case DCLL blanket or WCLL, where solubility diffusivity values will affect to induced flux terms magnitude kinetics. However, there exists a huge band literature for results obtained experimentally isotopes mentioned metal alloy, which unacceptable from designing point view. Moreover, exact content...
The determination of the transport parameters hydrogen isotopes in eutectic lead-lithium (PbLi) alloy represents a key issue for design different breeding blanket systems that are being developed based on this liquid metal. This is case dual-coolant lithium-lead where values Sieverts' constant and diffusivity will delimit magnitude kinetics induced tritium flux produced by toward circuit He refrigeration structures. In addition, (sizing efficiency) future extraction or coolant purification...
The transport of hydrogen isotopes through the elements that make up a fusion reactor, and their corresponding interaction with these materials, have direct impact on its operation. Consequently, it is essential to master in advance parameters different materials proposed constitute will compound reactors, and, consequently, this one main lines investigation. For reasons technology, safety viability, would be desirable possibility experimenting only protium from values, extrapolate those...
Gaur egun daukagun energia-kontsumoaren sistemak erabateko aldaketaren beharra du, faktore nabariengatik, batez ere suertatzen diren ingurumen-arazoengatik, baina baita denboran zeharreko jasangarritasunagatik ere. Hori dela eta, ezinbestekoa da alternatibak aurkitzea hainbeste erabiltzen erregai fosilak ordezkatzeko. Testuinguru horretan, fusio-energia nuklearra aurkezten epe ertainera sortuko arazo asko konpon ditzakeen aukera teknologiko bezala. Artikuluan zehar, energia-iturri horren...
Nuclear fusion energy emerges as one of the main alternatives in medium and long term, capable complementing variable contribution renewable energies. This paper will discuss its status challenges it faces for development, well elements that make up future reactors. The international ITER project is critical to verify integrity all this technology. It sets out a series milestones represent an intermediate step towards becoming major system, demonstrating technological feasibility each...