Abstract
Electrical conductivity and thermoelectric power measurements have been made on nonstoichiometric UO2 at temperatures of 500–1150°C. The conductivity data in the single phase UO2+x region can be represented by the equation σ(ohm cm)−1=(3.8×106)/T(2x)(1−2x) exp[(−0.30±0.03 ev)/kT].An approximate equation for the thermoelectric power Q, is Q=(k/e) ln(1−2x/2x). The electrical measurements confirm the ionic theory of nonstoichiometry in UO2, postulated on the basis of thermodynamic evidence. Nonstoichiometric UO2 is a relatively simple ionic solid in which activated electronic hole transfer occurs between U5+ and U4+ ions in the lattice.
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.
