Accession Number : AD0265106

Title :   RESEARCH PROGRAM ON SEMICONDUCTING COMPOUNDS FOR THERMOELECTRIC POWER GENERATION AT HIGH TEMPERATURES

Corporate Author : CHRYSLER CORP DETROIT MICH

Personal Author(s) : LEWIS,C.R.

Report Date : 14 NOV 1960

Pagination or Media Count : 1

Abstract : SEARCH, *Electric power production. Samples of WSe2 and WTe2 were prepared. The material resulting from mixing Ta powder and Se in a 1:4 atomic ratio gave a complex X-ray diffraction pattern indicating a TaSe phase of low crystal symmetry. A compound was prepared which is probably a Laves-type phase of nominal composition Ta31Te8. Difficulties were encountered in producing a Ta-Ge compound in sufficient quantity for measurement because of the large increase in volume during the reaction. An unknown phase was indicated in the reaction material from a 1:4-atom-ratio mixture of Hf and Se. A dark powder obtained from an Re-Se sample reacted at 1200 F for 260 hr may have useful properties as a solid lubricant. Results are presented of Seebeck coefficient and resistivity measurements made on NiAl, TaSb, WTe2, and WSe2.

Descriptors :   *ELECTRIC POWER PRODUCTION, *INTERMETALLIC COMPOUNDS, *SEMICONDUCTORS, *THERMOELECTRICITY, ALUMINUM ALLOYS, ANTIMONY ALLOYS, BISMUTH ALLOYS, ELECTRICAL PROPERTIES, GERMANIUM ALLOYS, HAFNIUM ALLOYS, HAFNIUM COMPOUNDS, HIGH TEMPERATURE, METALS, NICKEL ALLOYS, POWER SUPPLIES, PREPARATION, REFRACTORY MATERIALS, RHENIUM ALLOYS, RHENIUM COMPOUNDS, SELENIDES, SYNTHESIS, TANTALUM ALLOYS, TANTALUM COMPOUNDS, TELLURIDES, TUNGSTEN COMPOUNDS

Distribution Statement : APPROVED FOR PUBLIC RELEASE