Accession Number : ADA310881

Title :   Thermoelectric Properties of RE(x)Ce(1-x)Pd3 (RE=Y, La(0.5)Y(0.5') Nd).

Descriptive Note : Technical rept. no. 31,,

Corporate Author : CORNELL UNIV ITHACA NY DEPT OF CHEMISTRY

Personal Author(s) : Ijiri, Y. ; DiSalvo, F. J.

PDF Url : ADA310881

Report Date : 10 JUL 1996

Pagination or Media Count : 23

Abstract : The intermediate valent compound CePd3 has an unusually large thermoelectric power (from 100-300 K), which is interesting from the perspective of thermoelectric cooling devices. To optimize the thermoelectric properties, we have investigated rare earth substituted samples of the form RE(x)Ce(1-x)Pd3 where RE=Y, La(0,5)Y(0.5'),Nd. We have found that the intermediate valent state is highly dependent on the nature of the rare earth dopant and in particular to any local strains or bond distance changes. With Nd dilution, a small enhancement of the thermoelectric power factor alpha(2)/rho is observed.

Descriptors :   *CERIUM, *RARE EARTH ELEMENTS, *THERMOELECTRICITY, *THERMOELECTRIC COOLING, OPTIMIZATION, ELECTRICAL CONDUCTIVITY, CHEMICAL BONDS, THERMAL CONDUCTIVITY, SAMPLING, VALENCE, SUBSTITUTES, NEODYMIUM, DILUTION, LANTHANUM, PALLADIUM, THERMOELECTRIC POWER GENERATION, YTTRIUM.

Subject Categories : Inorganic Chemistry
      Physical Chemistry
      Air Condition, Heating, Lighting & Ventilating
      Electricity and Magnetism

Distribution Statement : APPROVED FOR PUBLIC RELEASE