Abstract
The impedance of a sodium β-alumina based electrochemical sensor, developed for the determination of the lithium activity in liquid metal blends, was investigated as a function of temperature. The impedance spectra could be rationalised in terms of purely resistive bulk conduction, dispersive grain boundary conduction and a diffusion-limited electrode conduction. Values of log (T/ R), as derived from the interior grain and grain boundary resistivities were found to follow an Arrhenius behaviour. Corresponding activation energies of respectively 30 and 58 kcal/mol were calculated.
| Original language | English |
|---|---|
| Pages (from-to) | 754-757 |
| Number of pages | 4 |
| Journal | Solid State Ionics |
| Volume | 40-41 |
| Issue number | PART 2 |
| DOIs | |
| State | Published - Aug 1990 |
ASJC Scopus subject areas
- General Chemistry
- General Materials Science
- Condensed Matter Physics
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