Model for impedance of an ionic conductor sandwiched between blocking electrodes. [Example: yttria-stabilized zirconia]
Conference
·
OSTI ID:7109818
The simplest model for the impedance of an ionic conductor sandwiched between two blocking electrodes is a resistor in series with a capacitor (rc pair) representing the bulk material and the conductor-electrode interface, respectively, and a second capacitor parallel to the rc pair representing the electronic dielectric response of the system. In practice, to describe the experimental data satisfactorily, one needs to replace the interface capacitor with a constant-phase-angle (CPA) element and to add a non-Debye dielectric element parallel to the resistor to represent the local ionic movement. In this paper, some of the existing physical models for the CPA and non-Debye dielectric elements are discussed, and an example is presented for analyzing the impedance data using the resultant circuit model.
- Research Organization:
- Oak Ridge National Lab., TN (United States)
- Sponsoring Organization:
- DOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 7109818
- Report Number(s):
- CONF-9207124-1; ON: DE92017812
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400400* -- Electrochemistry
CAPACITORS
CHALCOGENIDES
DIELECTRIC PROPERTIES
ELECTRIC CONDUCTIVITY
ELECTRIC CONDUCTORS
ELECTRICAL EQUIPMENT
ELECTRICAL PROPERTIES
ELECTRONIC CIRCUITS
EQUIPMENT
EQUIVALENT CIRCUITS
IMPEDANCE
INTERFACES
IONIC CONDUCTIVITY
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RESISTORS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400400* -- Electrochemistry
CAPACITORS
CHALCOGENIDES
DIELECTRIC PROPERTIES
ELECTRIC CONDUCTIVITY
ELECTRIC CONDUCTORS
ELECTRICAL EQUIPMENT
ELECTRICAL PROPERTIES
ELECTRONIC CIRCUITS
EQUIPMENT
EQUIVALENT CIRCUITS
IMPEDANCE
INTERFACES
IONIC CONDUCTIVITY
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RESISTORS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES