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High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes
ESCI SJR: 0.176 SNIP: 0.48 CiteScore™: 1.3

ISSN Imprimir: 1093-3611
ISSN On-line: 1940-4360

High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes

DOI: 10.1615/HighTempMatProc.v3.i1.90
pages 105-116

Effect of High Polarizability on Mobilities in Ionic Melts

RESUMO

The effect of cations having high polarizability on the mobilities of coexisting cations as well as of the cations themselves has been studied for Ag+, Tl+ and Cs+ ions. We have previously found that the internal mobilities, u, of alkali ions in molten salts such as nitrates are well expressed by an empirical equation:u = [A/(Vm-V0)] exp(−E/RT), where Vm is the molar volume, and A, V0 and E. are parameters nearly independent of coexisting cations. In binary melts (M, Ag)NO3, uM except for М=Li+ becomes smaller than expressed by this equation; Ag+ ion has a tranquilizafion effect on uM. On the contrary, in (M, TI)NO3, uM becomes higher than according to the equation, which means that Tl+ has an agitation effect on uM. It is found that Cs+, having a high polarizability, also has an appreciable agitation effect


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