Results 41 to 50 of about 526,420 (390)
Nano-Micro Letters, 2020 Ultrafine tungsten carbide nanoparticles-decorated carbon nanosheets were successfully fabricated via a simple solvent-free strategy. The chemical composition of tungsten carbide/carbon composites can be easily manipulated by the weight ratio of ...
Y. Lian +7 more
semanticscholar +1 more source
Eurasian Chemico-Technological Journal, 2021 Samples based on strontium, lanthanum and tungsten with the general formula of Sr(La1-xLnx)2WO7 doped with samarium and europium at 1 and 3 at.% were synthesized by the solid-phase method at temperatures up to 1200 °C.
D. T. Sadyrbekov +4 more
doaj +1 more source
Transition from tunneling to direct contact in tungsten nanojunctions [PDF]
, 2003 We apply the mechanically controllable break junctions technique to investigate the transition from tunneling to direct contact in tungsten. This transition is quite different from that of other metals and is determined by the local electronic properties
A. Correia +26 more
core +2 more sources
The promotion effect of uniaxial strain on hydrogen aggregation in tungsten
Frontiers in Materials, 2023 The aggregation behavior of hydrogen (H) isotopes after low-energy plasma irradiation is particularly important for tungsten (W) in future fusion devices. Here, using the first-principles calculation, we demonstrated an interesting strain effect that may
Fang-Fei Ma +9 more
doaj +1 more source
Materials Research Express, 2023 Fundamental mechanisms governing the erosion and prompt re-deposition of tungsten impurities in tokamak divertors are identified and analyzed to inform the lifetime of tungsten plasma-facing components in ITER and other future devices.
T Abrams +16 more
doaj +1 more source
CCVD synthesis of carbon nanotubes with W/Co–MgO catalysts. [PDF]
, 2008 Carbon nanotubes (CNT) were synthesized from a H2–CH4 mixture with W/Co–MgO catalyst by a catalytic chemical vapour deposition (CCVD) method. Different W/Co ratios were investigated.
Datas, Lucien +5 more
core +2 more sources
Ductilisation of tungsten (W): Tungsten laminated composites
International Journal of Refractory Metals and Hard Materials, 2017 Here we elucidate the mechanisms of plastic deformation and fracture of tungsten laminated composites. Our results suggest that the mechanical response of the laminates is governed by the plastic deformation of the tungsten plies. In most cases, the impact of the interlayer is of secondary importance.
Reiser, J. +21 more
openaire +5 more sources
Molecular dynamics analysis of primary radiation damage evolution in nickel, iron, and tungsten
He jishu, 2023 BackgroundNickel-, iron- and tungsten-based alloys are commonly used as structural materials of reactors. During their operational life, these alloys undergo intense neutron irradiation.PurposeThis study aims to analyze the post-irradiation defect ...
YING Hong +7 more
doaj +1 more source
OXIDATION OF TUNGSTEN AND TUNGSTEN BASED ALLOYS [PDF]
, 1961 Abstract : The results of studies related to the oxidation of W and its alloys are studied. The pressure of WO3 polymers over WO2 was measured in a W Knudsen cell and found to agree with measurements in a Pt cell. Literature data for WO2 WO3 were combined with vapor pressures determined in this project to give thermodynamic values for W18O49 and W20O58.
Blackburn, P.E. +3 more
openaire +3 more sources