Results 11 to 20 of about 41,725 (261)
Hydrogen and helium trapping in hcp beryllium
Communications Chemistry, 2023 Even though hydrogen-metal surface interactions play an important role in energy technologies and metal corrosion, a thorough understanding of these interactions at the nanoscale remains elusive due to obstructive detection limits in instrumentation and ...
Nikolai Zimber +6 more
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Hydrogen Trapping at Fe/Cu Interfaces. [PDF]
Materials (Basel)Copper (Cu) in steel production can be a residual element, causing challenges during steel processing, as well as an alloying element, improving corrosion resistance and providing hardenability by nanosized precipitates. For the transition toward a green economy, increased recycling rates in steel production and alternative energy carriers, such as ...
Hammer P, Militzer M, Razumovskiy VI.
europepmc +3 more sources
Trapping cold molecular hydrogen [PDF]
Physical Chemistry Chemical Physics, 2011 ISSN:1463 ...
Seiler Christian +2 more
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Hydrogen in beryllium: Solubility, transport, and trapping [PDF]
Physical Review B, 2009 The paper presents the results of ab initio simulation of hydrogen properties in beryllium. Both interstitial hydrogen positions in the lattice and various hydrogen positions in a vacancy have been studied. The most energetically favorable interstitial hydrogen configuration among the four considered high-symmetry configurations is the basal ...
Ganchenkova, Maria +2 more
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Hydrogen trapping in niobium-vanadium alloys [PDF]
Journal of Physics F: Metal Physics, 1986 The authors have measured the localised vibrational modes of hydrogen in a Nd0.93V0.07 alloy. As one cools the sample for the first time to 10K one observes that hydrogen is trapped at octahedral sites associated with two substitutional vanadium atoms. The trap energy is small (10-20 meV) and less than the precipitation enthalpy.
PICK, MA, SHAPIRO, SM, STONEHAM, AM
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Significance of Self-Trapping on Hydrogen Diffusion [PDF]
Physical Review Letters, 2010 The diffusion rate of hydrogen in Nb was calculated using ab initio molecular dynamics simulations. At low temperatures the hydrogen is strongly trapped in a local strain field which is caused by the elastic response of the lattice. At elevated temperatures, the residence time (τ) of hydrogen in an interstitial site is not sufficient for fully ...
Andreas, Blomqvist +4 more
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Hydrogen microsensors with hydrogen sulfide traps
Sensors and Actuators B: Chemical, 2015 AbstractHydrogen is often formed in sulfidic environments where interference from hydrogen sulfide has prevented its analysis by amperometric hydrogen microsensors. Hydrogen microsensors were made insensitive to hydrogen sulfide by placing a sulfide trap (guard) containing solutions of heavy metal ions, sulfide-oxidizing ferricyanide, or alkaline ...
Nielsen, Michael +3 more
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Energies, 2020 In a multicrystalline silicon (mc-Si) wafer, trapping effects frequently occur in the carrier lifetime measurement based on the quasi-steady-state photoconductance (QSSPC) technique.
Yujin Jung +5 more
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Optical cooling of atomic hydrogen in a magnetic trap [PDF]
Physical Review Letters, 1993 We describe the prospects for optical cooling of magnetically trapped atomic hydrogen. We analyze the performance of an optical system currently under development in our laboratory and present calculations for the optical cooling rate. We conclude that by using optical techniques hydrogen can be cooled to below 10 mK while the density is simultaneously
Setija, I.D. +5 more
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Influence of dislocations on hydrogen diffusion and trapping in an Al-Zn-Mg aluminium alloy
Materials & Design, 2019 Cu-lean Al-Zn-Mg alloys are known to be susceptible to hydrogen embrittlement (HE), which currently limits their use in automotive industry. Several works suggested that the resulting loss of mechanical properties was related to hydrogen trapping in ...
L. Oger +4 more
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