Accession Number : AD0266128

Title :   THERMOELECTRIC MATERIALS FOR POWER CONVERSION

Corporate Author : DAVID SARNOFF RESEARCH CENTER PRINCETON N J

Personal Author(s) : ABELES,B. ; CODY,G.D.

Report Date : 15 FEB 1961

Pagination or Media Count : 1

Abstract : Materials research on Bi telluride alloys ternary compounds, silicides and sulfides is described. The measurements of thermal diffusivities of semiconductors at high temperatures are described with efficiency measurements on power generating thermocouples. Measurements of the temperature dependence of thermoelectric properties on a number of solid solution alloy systems showed that solid solution alloys of Bi2Te3 with Bi2Se3, Sb2Te3 and Sb2Se3 provided the best pand n-type material for thermocouple operation in the temperature range 25 to 250 C. A large number of ternary compound semiconductors having the cubic structure were synthesized and those, such as AgSbTe2, with the rock salt structure are characterized by low lattice thermal conductivities. AgSbTe2 and its alloys with GeTe provided p-type materials useful for power generation in the range 250 to 550 C. (Author)

Descriptors :   *ELECTRIC POWER PRODUCTION, *SEMICONDUCTORS, *THERMOELECTRICITY, ALLOYS, ANTIMONY ALLOYS, BISMUTH ALLOYS, COMPLEX COMPOUNDS, CRYSTAL LATTICES, CRYSTAL STRUCTURE, ENERGY CONVERSION, GERMANIUM, HIGH TEMPERATURE, INDIUM COMPOUNDS, INTERMETALLIC COMPOUNDS, MATERIALS, MEASUREMENT, RARE EARTH COMPOUNDS, SANDWICH PANELS, SELENIUM ALLOYS, SILICIDES, SILICON, SILVER ALLOYS, SOLIDS, SOLUTIONS(MIXTURES), SULFIDES, SYNTHESIS, TELLURIUM ALLOYS, THERMAL CONDUCTIVITY, THERMAL DIFFUSION, THERMOCOUPLES

Distribution Statement : APPROVED FOR PUBLIC RELEASE