Abstract
Electrochemical kinetic investigation of a Ti-H system was conducted in LiCl-KCl-LiH melts at 723 K. Apparent chemical diffusion coefficients of hydrogen including phase transformations, were estimated for α, β, and phases by chronopotentiometry. Chemical diffusion coefficients of absorbed hydrogen in α, β, and δ phases were obtained by ac impedance spectroscopy and that in δ phase was estimated by potential-step chronoamperometry. Obtained results were compared with reported values to confirm the validity of the electrochemical technique for kinetic investigation of M-H systems in both cases, with and without phase transformations. © 2001 The Electrochemical Society. All rights reserved.
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