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Powder Metallurgy and Metal Ceramics

, Volume 44, Issue 7–8, pp 372–376 | Cite as

Thermodynamic Properties of the Quasibinary System Bi2Se3 - Bi2Te3 over a Broad Temperature Range

  • N. P. Gorbachuk
  • V. V. Zakharov
  • V. R. Sidorko
  • L. V. Goncharuk
Physicochemical Materials Research

Abstract

We have studied the heat capacity and enthalpies of solid solutions in the quasibinary system Bi2Se3 - Bi2Te3 at low and high temperatures. Based on low-temperature measurements of the heat capacity, we have calculated the values of the enthalpy, entropy, and reduced Gibbs energy of the compounds under standard conditions. We have determined the temperature dependences of the thermodynamic functions for the solid solutions Bi2Se3 - Bi2Te3 (50, 70, and 80 mole% Bi2Te3) in the temperature range 298.15 K - Tmp.

Keywords

thermodynamics calorimetry heat capacity enthalpy entropy reduced Gibbs energy solid solution 

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Copyright information

© Springer Science+Business Media, Inc. 2005

Authors and Affiliations

  • N. P. Gorbachuk
    • 1
  • V. V. Zakharov
    • 1
  • V. R. Sidorko
    • 1
  • L. V. Goncharuk
    • 1
  1. 1.Institute for Problems of Materials ScienceNational Academy of Sciences of UkraineKievUkraine

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