Journal ArticleDOI
NMR study of hydrogen diffusion in the three different phases of the titanium-hydrogen system
Charles Korn,David Zamir +1 more
TLDR
In this article, the authors measured the proton spin lattice relaxation time at 19.00 MHz as a function of temperature in the range 25°-500°C for a series of samples in the α, β and γ phases of titanium hydride.About:
This article is published in Journal of Physics and Chemistry of Solids.The article was published on 1970-03-01. It has received 101 citations till now. The article focuses on the topics: Hydrogen & Relaxation (NMR).read more
Citations
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Diffusion of hydrogen in metals
Y. Fukai,H. Sugimoto +1 more
TL;DR: The present status of our understanding of the diffusion of hydrogen in metals, both experimental and theoretical, is reviewed in this paper, where a conceptual framework of the quantum diffusion of light interstitials in metals is given, including the recent Kondo theory that emphasizes the crucial importance of particle-conduction electron interactions in the diffusion process, especially at low temperatures.
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Hydride precipitation in titanium
Hiroshi Numakura,Masahiro Koiwa +1 more
TL;DR: The crystal structure and morphology of hydride (deuteride) precipitates were investigated in this paper, where the deuteride was found to have a face-centered tetragonal structure (c/a = 1.09) with an ordered arrangement of hydrogen.
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Hydrogen‐diffusion‐rate‐limited hydriding and dehydriding kinetics
TL;DR: In this article, the authors derived the Johnson-Mehl-Avrami equation for hydriding and dehydriding in a growing hydride layer and a growing metal layer, where the dominant composition dependent terms in the thermodynamics and in the mobility are taken into account to derive normative diffusivity for hydrogen.
References
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Journal ArticleDOI
Nuclear Spin Relaxation by Translational Diffusion
TL;DR: The general theory of Bloembergen, Purcell, and Pound of nuclear spin relaxation has been extended to a more quantitative study of relaxation by translational diffusion as mentioned in this paper, and it has been found necessary to treat the problem by the theory of random walk.
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Pulsed Nuclear Resonance Apparatus
TL;DR: In this paper, the authors describe a complete pulsed nuclear resonance spectrometer suitable for experiments in solids, which can operate at any frequency between 2 and 30 Mc, an rf pulse output power of 5 kW over most of this range, a receiving system recovery time of 5-10 μsec at 10 Mc, a sensitivity usually limited by thermal noise in the receiver coil, use of phase coherent detection, the availability of a wide variety of pulse sequences, and good long and short term stability of the entire system.
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Thermocrystallography of higher hydrides of titanium and zirconium
TL;DR: In this paper, the authors have shown that the second-order transformation of ZrH/sub 1.92/ is temperature-dependent and that the critical temperature of the secondorder transformation in Zrh/sub 2/2/ is unattainable in the present diffraction apparatus owing to dissociation of the hydride.
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Proton Magnetic Resonance Studies of Structure, Diffusion, and Resonance Shifts in Titanium Hydride
TL;DR: The second moment of the proton resonance at lower temperatures shows that the hydrogen atoms are randomly distributed among the lattice sites which are located tetrahedrally with respect to the titanium atoms.