Advances in high temperature components for AMTEC (alkali metal thermal-to-electric converter)
Conference
·
OSTI ID:5853524
Long lifetimes are required for AMTEC (or sodium heat engine) components for aerospace and terrestrial applications, and the high heat input temperature as well as the alkali metal liquid and vapor environment places unusual demands on the materials used to construct AMTEC devices. In addition, it is important to maximize device efficiency and power density, while maintaining a long life capability. In addition to the electrode, which must provide both efficient electrode kinetics, transport of the alkali metal, and low electrical resistance, other high temperature components of the cell face equally demanding requirements. The beta{double prime} alumina solid electrolyte (BASE), the seal between the BASE ceramic and its metallic transition to the hot alkali metal (liquid or vapor) source, and metallic components of the device are exposed to hot liquid alkali metal. Modification of AMTEC components may also be useful in optimizing the device for particular operating conditions. In particular, a potassium AMTEC may be expected to operate more efficiently at lower temperatures.
- Research Organization:
- Jet Propulsion Lab., Pasadena, CA (United States)
- Sponsoring Organization:
- DOE; DOD; NASA; USDOE, Washington, DC (United States); Department of Defense, Washington, DC (United States); National Aeronautics and Space Administration, Washington, DC (United States)
- DOE Contract Number:
- AI01-86CE90237
- OSTI ID:
- 5853524
- Report Number(s):
- CONF-910801-26; ON: DE92006752
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
30 DIRECT ENERGY CONVERSION
300303* -- Thermoelectric Generators-- Materials
Components
& Auxiliaries
ALLOYS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CHALCOGENIDES
DIRECT ENERGY CONVERTERS
ELECTRODES
ELECTROLYTES
FLUIDS
HEAT TRANSFER FLUIDS
MATERIALS TESTING
NESDPS Office of Nuclear Energy Space and Defense Power Systems
NONDESTRUCTIVE TESTING
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PLATINUM METAL ALLOYS
RHODIUM ALLOYS
RHODIUM BASE ALLOYS
TESTING
THERMAL CONDUCTIVITY
THERMAL TESTING
THERMODYNAMIC PROPERTIES
THERMOELECTRIC GENERATORS
TUNGSTEN ALLOYS
300303* -- Thermoelectric Generators-- Materials
Components
& Auxiliaries
ALLOYS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CHALCOGENIDES
DIRECT ENERGY CONVERTERS
ELECTRODES
ELECTROLYTES
FLUIDS
HEAT TRANSFER FLUIDS
MATERIALS TESTING
NESDPS Office of Nuclear Energy Space and Defense Power Systems
NONDESTRUCTIVE TESTING
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PLATINUM METAL ALLOYS
RHODIUM ALLOYS
RHODIUM BASE ALLOYS
TESTING
THERMAL CONDUCTIVITY
THERMAL TESTING
THERMODYNAMIC PROPERTIES
THERMOELECTRIC GENERATORS
TUNGSTEN ALLOYS