ac conductivity of polycrystalline CA-. beta. ''-alumina
Technical Report
·
OSTI ID:5311191
Polycrystalline Ca-..beta..''-alumina was prepared from Na-..beta..''-alumina by molten salt exchange in Ca(NO/sub 3/)/sub 2/-CaCl/sub 2/ and in CaCl/sub 2/. CaO.6Al/sub 2/O/sub 3/ did not form during the exchange processes. CaCl/sub 2/ attacks the polycrystalline ..beta..''-alumina. ac conductivity data on the polycrystalline material were fitted to an equivalent circuit using a nonlinear least-squared-error fitting program, from which the Ca ion conductivity was extracted. The bulk Ca ion conductivity is 3 x 10/sup -4/ (ohm.cm)/sup -1/ at 300/sup 0/C. Intergranular resistance is thought to dominate the overall Ca ion resistance.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 5311191
- Report Number(s):
- SAND-83-2655C; CONF-831086-11; ON: DE84005529
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
25 ENERGY STORAGE
250900* -- Energy Storage-- Batteries
ALKALINE EARTH METAL COMPOUNDS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CALCIUM CHLORIDES
CALCIUM COMPOUNDS
CALCIUM HALIDES
CALCIUM NITRATES
CHALCOGENIDES
CHLORIDES
CHLORINE COMPOUNDS
CRYSTALS
DATA
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTROLYTES
EXPERIMENTAL DATA
HALIDES
HALOGEN COMPOUNDS
INFORMATION
IONIC CONDUCTIVITY
NITRATES
NITROGEN COMPOUNDS
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
POLYCRYSTALS
SOLID ELECTROLYTES
250900* -- Energy Storage-- Batteries
ALKALINE EARTH METAL COMPOUNDS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CALCIUM CHLORIDES
CALCIUM COMPOUNDS
CALCIUM HALIDES
CALCIUM NITRATES
CHALCOGENIDES
CHLORIDES
CHLORINE COMPOUNDS
CRYSTALS
DATA
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTROLYTES
EXPERIMENTAL DATA
HALIDES
HALOGEN COMPOUNDS
INFORMATION
IONIC CONDUCTIVITY
NITRATES
NITROGEN COMPOUNDS
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
POLYCRYSTALS
SOLID ELECTROLYTES