Thermoelectric properties of mechanically alloyed p -type Si sub 80 Ge sub 20 alloys
Conference
·
· AIP Conference Proceedings (American Institute of Physics); (United States)
- Ames Laboratory State University Ames, IA 50011-3020 (USA)
- U. S. Department of Energy Office of Special Applications Washington, D.C. 20545 (USA)
We report on the thermoelectric properties of several heavily doped {ital p}-type Si{sub 80}Ge{sub 20} alloys prepared by mechanical alloying, a high energy ball milling process. The alloys were formed from elemental silicon, germanium, and boron in the form SiB{sub 4} and subsequently hot pressed. Measurements of the electrical resistivity, Seebeck coeficient, and thermal diffusivity to 1300 K indicate that these alloys have thermoelectric properties comparable to state-of-the-art Si{sub {ital x}}Ge{sub 1{minus}{ital x}} {ital p}-type materials.
- DOE Contract Number:
- W-7405-ENG-82
- OSTI ID:
- 5685797
- Report Number(s):
- CONF-910116--
- Conference Information:
- Journal Name: AIP Conference Proceedings (American Institute of Physics); (United States) Journal Volume: 217:1
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
30 DIRECT ENERGY CONVERSION
300303 -- Thermoelectric Generators-- Materials
Components
& Auxiliaries
36 MATERIALS SCIENCE
360603* -- Materials-- Properties
ALLOYS
ANNEALING
BORON ADDITIONS
BORON ALLOYS
CARRIER DENSITY
CARRIER MOBILITY
DOPED MATERIALS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
FABRICATION
GERMANIUM ALLOYS
HEAT TREATMENTS
HIGH TEMPERATURE
HOT PRESSING
MATERIALS
MATERIALS WORKING
MEDIUM TEMPERATURE
MOBILITY
NESDPS Office of Nuclear Energy Space and Defense Power Systems
P-TYPE CONDUCTORS
PHYSICAL PROPERTIES
PRESSING
QUENCHING
SEEBECK EFFECT
SEMICONDUCTOR MATERIALS
SILICON ALLOYS
TEMPERATURE DEPENDENCE
THERMAL DIFFUSIVITY
THERMODYNAMIC PROPERTIES
THERMOELECTRIC PROPERTIES
VERY HIGH TEMPERATURE
300303 -- Thermoelectric Generators-- Materials
Components
& Auxiliaries
36 MATERIALS SCIENCE
360603* -- Materials-- Properties
ALLOYS
ANNEALING
BORON ADDITIONS
BORON ALLOYS
CARRIER DENSITY
CARRIER MOBILITY
DOPED MATERIALS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
FABRICATION
GERMANIUM ALLOYS
HEAT TREATMENTS
HIGH TEMPERATURE
HOT PRESSING
MATERIALS
MATERIALS WORKING
MEDIUM TEMPERATURE
MOBILITY
NESDPS Office of Nuclear Energy Space and Defense Power Systems
P-TYPE CONDUCTORS
PHYSICAL PROPERTIES
PRESSING
QUENCHING
SEEBECK EFFECT
SEMICONDUCTOR MATERIALS
SILICON ALLOYS
TEMPERATURE DEPENDENCE
THERMAL DIFFUSIVITY
THERMODYNAMIC PROPERTIES
THERMOELECTRIC PROPERTIES
VERY HIGH TEMPERATURE