Abstract
ZrCr 2 samples with well defined hexagonal (C14/C36) or cubic (C15) Laves phase structures have been synthesised by melting in an arc furnace followed by different treatments depending on the sample type. Hydrogen absorption capacity and thermodynamic stability of their respective hydrides have been investigated by solid–gas reaction. Pressure–composition–temperature (PCT) curves obtained for both structures at temperatures of 348, 373, 398 and 423 K, and H-pressures from 10 1 to 10 6 Pa, showed that the cubic phase is less stable than the hexagonal ones. This result was related to Miedema's rule of reversed stability and also correlated to the volume of the interstitial hole for hydrogen.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
