A5049363822- Hydrogen embrittlement and corrosion behaviors in metals
- Corrosion Behavior and Inhibition
- Nuclear Materials and Properties
- Fusion materials and technologies
- Semiconductor materials and devices
- Non-Destructive Testing Techniques
- Concrete Corrosion and Durability
- Metal and Thin Film Mechanics
- Plasma Diagnostics and Applications
- Drilling and Well Engineering
- Vacuum and Plasma Arcs
- Nuclear Physics and Applications
- Tunneling and Rock Mechanics
- Grouting, Rheology, and Soil Mechanics
- Diamond and Carbon-based Materials Research
- Microstructure and Mechanical Properties of Steels
- Magnetic confinement fusion research
- Fatigue and fracture mechanics
- Laser Design and Applications
- Mechanical and Optical Resonators
- Metal Alloys Wear and Properties
- Welding Techniques and Residual Stresses
- Heat Transfer and Boiling Studies
- Graphene research and applications
- High Temperature Alloys and Creep
Slovenian National Building and Civil Engineering Institute
2014-2024
Jožef Stefan Institute
2004-2013
Uppsala University
2008-2009
Peking University
2008
Institute of Metals and Technology
2003
The field-emission (FE) properties of molybdenum disulfide nanotubes (NTs) are reported for the single-tip geometry. Reproducibly stable FE currents in excess 10 μA were measured from single NT tips vacuum 10−7 mbar. Valuable characteristics nanotube material ease processing and reproducibility properties.
Gas-discharge tube (GDT) surge protectors are known for many decades as passive units used in low-voltage telecom networks protection of electrical components from transient over-voltages (discharging) such lightning. Unreliability the mean turn-on DC breakdown voltage and run-to-run variability has been overcome successfully past by adding, example, a radioactive source inside tube. Radioisotopes provide constant low level free electrons, which trigger breakdown. In last decades, any...
The pitting and environmentally assisted cracking resistance of austenitic stainless steels (SS) is challenged in several industrial applications particularly those involving hot chloride-concentrated streams. Directional drilling used the oil gas exploration one these applications. Indeed, high strength CrMn-SS commonly technology have a tendency to fail by stress corrosion (SCC) preceded localized once subjected highly fluids at elevated temperatures. A comprehensive understanding...
The applicability of an accelerated test technique using tapered tensile specimens for investigating the stress corrosion crack (SCC) initiation behaviour structural materials in high-temperature water was assessed framework a European collaborative research project (MICRIN – MItigation CRack INitiation). main advantage geometry is, that single gradient is obtained through gauge length, and therefore threshold SCC can be determined reasonable timeframe. This method used to investigate two...
The field emission (FE) properties of nanowires made from the recently synthesized nanowire material Mo6S3I6 are reported. A single was mounted on an indium-coated nickel holder by dielectrophoresis in isopropyl alcohol. careful activation or conditioning a vacuum 10−7 mbar shown to be indispensable order extract relatively stable FE currents excess 1 µA originating only few sites at end nanowire. Measurements were performed microscope with additional plane mesh, which enables us record I–U...
The field-emission and current−voltage characteristics of individual W5O14 nanowires were studied using a transmission electron microscope microscope. made good ohmic contacts with W Pt at room temperature had excellent properties. measurements showed that current as high 35 μA can be extracted from single nanowire. A reduced angular density 28.7 nAsr-1V-1 was obtained nanowire sharp tip. These results suggest W5O14nanowires might realistic candidate the source for low-energy beam.
Abstract Anticorrosive coatings are commonly used to protect metal structures from corrosion and thus assure constancy of the profile area, consequently mechanical stability structure. Due environmental factors, is inevitable considered during design process; however, it very difficult predict rate a priori , designer usually relies on empirical data make an assessment. In attempt address this issue, various types sensors that monitor state metallic have been developed. study, abilities two...
Permeation of hydrogen isotopes from the upstream pressure through a membrane into high vacuum at elevated temperatures is challenging task for technology, especially when very low fluxes must be determined. Geometrical and mechanical constraints set an engineering issue since ultimate tightness seals temperature preserved. Recording steady permeation flux its transients requires sensitivity stability gauges. It anyhow far more to suppress background outgassing level it represents only...
Abstract The main objective of the EU-funded project mitigating environmentally-assisted cracking through optimisation surface condition (MEACTOS) was to gain knowledge on ability different machining procedures mitigate (EAC) in typical light water reactor structural materials and environments. Surfaces cold-worked (CW) type 316L austenitic stainless steel nickel-based weld metal Alloy 182 flat tapered tensile specimens were machined using processes. EAC initiation susceptibility these...
An important aspect regarding the sustainability of steel structures is to ensure structure protected from corrosion.A number surface coatings are available that play an role in protecting these structures.An part management reliable and regular inspection along with methods for early detection corrosion processes.In this paper, a development application sensors monitoring coating degradation damage substrate presented.An encapsulated kit integrated EIS ER probes was developed.To test its...
Prediction of tritium migration and its retention within fusion reactors is uncertain due to a significant role the structural disorder that formed on surface layer after plasma exposure. Tungsten films deposited by any suitable methods are always disordered contain high density hydrogen traps. Experiments such with isotopes present complementary method, which improves picture interaction relevant materials. The authors report morphology, composition, structure tungsten thermionic vacuum arc...
The rate of rise method was arranged for monitoring the kinetics hydrogen evolution from austenitic stainless steel (AISI 304) samples, inductively heated in range 300 to 1000 °C. After each heating cycle, accumulated gases were analyzed by quadrupole mass spectroscopy and quantity evolved determined. Three sample types studied: “only cleaned,” annealed (1050 °C), vacuum (950 °C). Below 800 °C, effect pretreatment manifested very differently kinetics. Fast release approximately 2×1019 atoms...
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The field-emission (FE) properties of quasi-one-dimensional NbOx crystals are reported for the single needle geometry. Relatively stable FE currents in excess 1 μA were measured after a careful conditioning vacuum 10−7 mbar. In all our experiments, current originating from few sites prevailed over entire range. This can be confirmed at least range where emission pattern could observed on high-resolution luminescent screen.