Proton Magnetic Resonance Studies of Structure, Diffusion, and Resonance Shifts in Titanium Hydride
作者： B. Stalinski , C. K. Coogan , H. S. Gutowsky
DOI: 10.1063/1.1731720
关键词: Atom 、 Titanium 、 Atmospheric temperature range 、 Hydrogen 、 Electron 、 Chemistry 、 Titanium hydride 、 Proton 、 Atomic physics 、 Vacancy defect 、 Physical and Theoretical Chemistry 、 General Physics and Astronomy
摘要: Measurements of the proton magnetic resonance at ∼26.9 Mc in titanium hydride samples, ranging composition from TiH1.61 to TiH1.97, have been made temperature range —196° about 200°C. The second moment lower temperatures shows that hydrogen atoms are randomly distributed among lattice sites which located tetrahedrally with respect atoms. Self‐diffusion narrows above room temperature. dependence correlation frequency for motions, obtained linewidths, leads diffusional activation energies increase content 9.4 kcal/g atom TiH1.607 10.2 TiH1.923. Moreover, diffusion rate is directly proportional number unfilled tetrahedral holes metallic lattice, indicates self‐diffusion takes place via a vacancy mechanism.Proton shifts higher applied fields were observe...
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