Results 211 to 220 of about 386,126 (244)

Diffusible hydrogen

2013
  +6 more sources

Theory of the diffusion of hydrogen in metals

1978
Hydrogen in metals has large diffusion coefficients compared to other interstitials.1 They are particularly large in the bcc metals V, Nb, and Ta; see Fig.1. In Nb and Ta the isotope H shows a lower activation energy for diffusion below 250 K, resulting in a large isotope effect at lower temperatures.
openaire   +1 more source

Diffusion of hydrogen in metals

Berichte der Bunsengesellschaft für physikalische Chemie, 1972
AbstractPublished measurements of the diffusion of hydrogen in fcc metals are summarized with particular emphasis on the isotope effect. The observations are generally consistent with the usual rate theory model but with the energy levels in both the equilibrium site and the saddle point quantized according to an Einstein oscillator.
H. K. Birnbaum, C. A. Wert
openaire   +1 more source

The diffusivity of hydrogen in aluminum

Acta Metallurgica, 1986
Abstract Using an electrolytic method employing a viscous electrolyte, the diffusivity of hydrogen in aluminum has been measured in the temperature range 285–328 K. The results show that H diffuses by a single-stage process from 285 K up to the melting temperature and no departures from Arrhenius behavior due to trapping effects involving lattice ...
T. Ishikawa, R.B. McLellan
openaire   +1 more source

Diffusion of Hydrogen in Aluminium*

Zeitschrift für Physikalische Chemie, 1992
Schlueter, H.J., Zuechner, H., Braun, R., Buhl, H.   +3 more
openaire   +2 more sources

Diffusion of Hydrogen in Semiconductors

1992
The diffusion of hydrogen in semiconductors is rather complex because of the fact that atomic hydrogen can exist in several charge states (notably H+ in p-type material and H− or H0 in n-type material) and also that hydrogen can apparently be present in a number of different forms, namely atomic, molecular or bound to a defect or impurity.
Stephen J. Pearton, James W. Corbett, Michael Stavola   +2 more
openaire   +1 more source

Hydrogen diffusion in Fe4N: Implication for an effective hydrogen diffusion barrier

International Journal of Hydrogen Energy, 2023
Min Wu, Jing Wang, Baihui Xing, Haojie Zhu   +3 more
openaire   +1 more source

Location-dependent effect of nickel on hydrogen dissociation and diffusion on Mg (0001) surface: Insights into hydrogen storage material design

Journal of Magnesium and Alloys, 2022
Zongying Han, Yayun Wu, Shixue Zhou
exaly  

Hydrogen Isotope Diffusion

Nature, 1967
HYDROGEN isotope diffusion in metals and polymers has generally been treated in the literature as a single body problem with the motion of the hydrogen regarded as the important parameter. On this basis the equation for interstitial diffusion of hydrogen atoms in metals or molecular diffusion in polymers follows an equation of the form
openaire   +1 more source

Hydrogen diffusion and trapping in X70 pipeline steel

International Journal of Hydrogen Energy, 2020
Alen Thomas, Jerzy A Szpunar
exaly