THERMOELECTRIC PROPERTIES OF SELENIDES AND TELLURIDES OF GROUPS VB AND VIB METALS AND THEIR SOLID SOLUTIONS

Abstract

Improved procedures in synthesis and in measurements have eliminated unreproducibilities in tantalum-doped tungsten diselenide preparations, giving a well-substantiated Figure of Merit of about 0.5 x 10 to the minus 3 power/deg in the 500 to 1000 C range. An apparatus for direct efficiency measurements is under construction. It is planned to incorporate tantalum-doped tungsten diselenide (p-type) in a practical thermoelectric module, cascaded with p-type lead telluride and encapsulated in a ceramic coated constant can which will also serve as the n-leg of the couple. Experimentation with the details of construction is underway. Thermoelectric properties of selenides and tellurides of Group VB and VIB metals and their solid solutions. Construction of a thermoelectric module using tantalum-doped tungsten diselenide.

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Document Details

Document Type
Technical Report
Publication Date
Feb 08, 1963
Accession Number
AD0404023

Entities

People

  • H. Valdsaar
  • W. T. Hicks

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Ceramic Materials
  • Chemical Reactions
  • Coefficients
  • Conductivity
  • Electrical Conductivity
  • Electrical Measurement
  • Electrical Properties
  • Figure Of Merit
  • Lead Tellurides
  • Measurement
  • Metals
  • Plastic Explosives
  • Resistance
  • Semiconductors
  • Solid Solutions
  • Temperature Gradients
  • Thermal Conductivity

Fields of Study

  • Materials science

Readers

  • Semiconductor Device Technology
  • Superconducting Magnet Technology
  • Surface Engineering/Surface Coating Technology.