Hydrogen diffusion in Ti–Nb45 at high hydrogen contents

Hydrogen diffusion behavior in α-solid solution phase of LmNi3.55Co0.75Mn0.4Al0.3 metal hydride electrode—Effect of temperature

“…A decrease of the D H values with an increasing hydrogen concentration in ␣-hydride phases of the investigated intermetallic could be attributed to the increase of occasionally trapped hydrogen atoms in the imperfections (dislocations) of the host lattice and hydrogen-intermetallic interactions, as proposed by Feng et al [17]. Furthermore, Keller and Rettenmayr [23] have observed from the pressure-composition isotherm curves, measured with a conventional Sievert's type apparatus, a similar decrease of the hydrogen diffusion coefficient in the Ti-Nb45 alloy with increasing of hydrogen content. The decrease of the hydrogen diffusion coefficient was attributed to mutual blocking of preferentially interstitial sites by hydrogen atoms.…”

Microstructural stability and its effect on hydrogen permeability in equiaxed and directionally solidified eutectic Nb 30 Ti 35 Co 35 alloys

“…The experimental procedure was identical with that in Refs. [10,14]. The amount of absorbed hydrogen was calculated from the pressure drop in a constant inner volume chamber.…”

Changes in microstructure, ductility and hydrogen permeability of Nb–(Ti, Hf)Ni alloy membranes by the substitution of Ti by Hf

“…The experimental procedure was identical with those in Refs. [35][36][37]. The amount of absorbed hydrogen was calculated from the pressure drop in a constant inner volume chamber.…”