Abstract
A comparative study of electrical properties of two systems of glasses xLiF (100 − x)BaNbOF 5 and xLiF (100 − x) (0.3AlF 3 · 0.7BaNbOF 5) ( x = 10−60 mol%) has been carried out as a function of LiF content. A minimum in ionic conductivity and a maximum in activation energy has been detected in both systems. It was found that, in the LiF-BaNbOF 5 binary system, the maximal activation energy and the minimal ionic conductivity occur at different LiF concentrations. By analogy with many ZrF 4-based fluoride glasses and the comparison of the influence of AlF 3 on the transport properties of the glasses with low and high LiF content, it is proposed that for the ternary system the transport properties mainly result from the contribution of mobile F − ions in the low LiF content ( ⩽ 25 mol%) region. In the high LiF concentration ( > 25 mol%) domain, the ionic conductivity is mainly governed by the migration of Li + ions. For binary systems, in the low LiF content ( ⩽ 25 mol%) region, the transport properties mainly result from the F − ions; in the range of LiF concentration between 25 and 50 mol%, both Li + and F − ions are responsible for the conduction; when the LiF concentration is higher than 50 mol%, the ionic conductivity of the glasses is mainly dominated by the migration of Li + ions.
Sign-in/Register to access full text options 
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.
