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Hydrogen trapping and hydrogen embrittlement of Mg alloys
Journal of Materials Science, 2017In this paper, the effect of local hydrogen concentration and distribution in magnesium (Mg) alloys is studied in regard to hydrogen embrittlement. Quantitative studies of hydrogen trapping sites and release behavior in AZ91 and AZ31 magnesium alloys are being studied by thermal desorption analysis (TDS).
M. Kamilyan, R. Silverstein, D. Eliezer
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Trapping and spectroscopy of hydrogen
Hyperfine Interactions, 1997I review the results and techniques used by the MIT H↑ group to achieve a fractional resolution of 2 parts in 1012 in the 1S–2S transition in hydrogen [Cesar, D. Fried, T. Killian, A. Polcyn, J. Sandberg, I.A. Yu, T. Greytak, D. Kleppner and J. Doyle, Two-photon spectroscopy of trapped atomic hydrogen, Phys. Rev. Lett.
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Magnetic Trapping of Spin-Polarized Atomic Hydrogen
Japanese Journal of Applied Physics, 1987We have confined over 5×1012 atoms of hydrogen in a static magnetic trap. The atoms are loaded into the trap by precooling with a dilution refrigerator. At operating densities near 1×1013 cm-3 the gas is observed to be electron- and nuclear-polarized in the uppermost hyperfine state.
, Hess +5 more
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Dependence of hydrogen trapping densities on hydrogen concentration
Journal of Non-Crystalline Solids, 1991The diffusive transport of deuterium into various as-deposited, annealed and post-hydrogenated amorphous Si (a-Si) samples is used to determine the effects of hydrogen 4c1oncentration on the trap densities. It is determined that a high H concentration introduces shallow traps for mobile H thus demonstrating that H interact with each other.
W.B. Jackson, C.C. Tsai, P.V. Santos
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The solubility and trapping of hydrogen in vanadium
Acta Metallurgica, 1973Abstract Solid solutions of hydrogen in vanadium are affected greatly by the presence of other interstitials carbon, nitrogen and oxygen. The solutions depart drastically from randomness at low temperatures and the solvus line is pushed to higher equilibrium hydrogen concentration as the concentration of these interstitials is increased.
H.Y Chang, C.A Wert
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Trapping of hydrogen implanted into titanium
Journal of Applied Physics, 1988Depth profiles and annealing behaviors of hydrogen implanted into titanium samples at an energy of 10 keV per nucleon were measured in the implantation temperature and fluence ranges of 77–400 K and of 6.3×1016–3.3×1018 H/cm2, respectively. Trapping enthalpies are deduced from the annealing curves.
Y. Takeuchi +4 more
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1989
The rapid development of techniques for cooling and trapping atoms using laser light has created a new subfield of atomic physics. Research opportunities include the study of matter at ultra low temperature, ultra precise atomic spectroscopy and the study of light-matter interaction in a new quantum regime.
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The rapid development of techniques for cooling and trapping atoms using laser light has created a new subfield of atomic physics. Research opportunities include the study of matter at ultra low temperature, ultra precise atomic spectroscopy and the study of light-matter interaction in a new quantum regime.
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Multivacancies trapping hydrogen molecules
Physica B: Condensed Matter, 2001Abstract Hydrogen molecule has been observed in ion-implanted silicon and attributed to be trapped in a multi-vacancy (H 2 (MV)). In order to clarify the structure of the multi-vacancy trap of H 2 (MV), we investigated correlation between thermal annealing of multi-vacancies and H 2 (MV). The results indicated that the main multi-vacancy trap is an H-
T. Mori +6 more
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Titanium: a hydrogen trap in iron
Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1980Abstract The presence of titanium in iron, either as a dissolved substitutional solute or combined as a carbo-nitride, has been shown to affect the susceptibility of these alloys to hydrogen embrittlement. This behaviour is a direct result of the ability of these titanium-rich centres to capture hydrogen.
G. M. Pressouyre, I. M. Bernstein
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Trapping hydrogen with a bimetallic interface
Physical Review B, 2005We report results of a study on the interaction of hydrogen with thin Au films grown on an Ir{111} surface at $\ensuremath{\approx}100\phantom{\rule{0.3em}{0ex}}\mathrm{K}$, using nuclear reaction analysis and first-principles calculations. We found that H atoms can be confined at the interface between the bulk-Ir surface and the Au thin film, which is
Michio Okada +7 more
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