Phase transition studies in BIMEVOX solid electrolytes using AC impedance spectroscopy
- Resource Type
- Authors
- Isaac Abrahams; W. Wrobel; Franciszek Krok; M. Malys
- Source
- Solid State Ionics. 176:2053-2058
- Subject
- Arrhenius equation
Phase transition
Chemistry
Analytical chemistry
Oxide
General Chemistry
Conductivity
Condensed Matter Physics
Dielectric spectroscopy
symbols.namesake
chemistry.chemical_compound
Metastability
Fast ion conductor
symbols
General Materials Science
Thermal analysis
- Language
- ISSN
- 0167-2738
The use of Arrhenius plots of total conductivity derived from ac impedance spectroscopy measurements in characterisation of phase transitions is discussed with reference to Bi 4 V 2 O 11− δ and the BIMEVOX family of oxide ion-conducting solid electrolytes. The technique is shown to be superior in some cases to standard laboratory methods such as thermal analysis and variable temperature X-ray diffraction. Examples include the identification of the metastable intermediate e-Bi 4 V 2 O 11− δ , β-phase stability in BIMGVOX and a kinetic study of the γ → γ ’ transition in BIZNVOX.