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Thermal Conductivity Behavior of Boron Carbides

  • Charles Wood
  • Andrew Zoltan
  • David Emin
  • Paul E. Gray

Abstract

Knowledge of the thermal conductivity of boron carbide is necessary to evaluate its potential for high temperature thermoelectric energy conversion applications. We have measured the thermal diffusivity of hot-pressed boron carbide B1-xCx samples as a function of composition (0.1 ≤ x ≤ 0.2), temperature (300 K to 1700 K) and temperature cycling. These data in concert with density and specific heat data yield the thermal conductivities of these materials. We discuss these results in terms of a structural model that has been previously advanced by two of us (D.E. and C.W.) to explain the electrical transport data. Some novel mechanisms for thermal conduction are briefly discussed.

Keywords

Thermal Conductivity Thermal Diffusivity Boron Carbide Thermal Transport Lattice Thermal Conductivity 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Purdue Research Foundation 1985

Authors and Affiliations

  • Charles Wood
    • 1
  • Andrew Zoltan
    • 1
  • David Emin
    • 2
  • Paul E. Gray
    • 3
  1. 1.Jet Propulsion LaboratoryCalifornia Institute of TechnologyPasadenaUSA
  2. 2.Sandia National LaboratoriesAlbuquerqueUSA
  3. 3.GA TechnologiesSan DiegoUSA

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