High-temperature calorimetry of zirconia: Heat capacity and thermodynamics of the monoclinic-tetragonal phase transition

Yosuke Moriya, Alexandra Navrotsky

Research output: Contribution to journalArticlepeer-review

49 Scopus citations

Abstract

The high-temperature heat capacity of zirconia was directly measured by differential scanning calorimetry between T = (1050 and 1700) K and derived from the heat content measured by transposed temperature drop calorimetry between T = (970 and 1770) K, including the monoclinic-tetragonal (m-t) phase transition region. The enthalpy and entropy of the m-t phase transition are (5.43 ± 0.31) kJ • mol-1 and (3.69 ± 0.21) J • K -1 • mol-1, respectively. Values of thermodynamic functions are provided from room temperature to 2000 K.

Original languageEnglish (US)
Pages (from-to)211-223
Number of pages13
JournalJournal of Chemical Thermodynamics
Volume38
Issue number3
DOIs
StatePublished - Mar 2006
Externally publishedYes

Keywords

  • Heat capacity
  • Martensitic transformation
  • Phase transition
  • Thermodynamic functions
  • Zirconia

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Physical and Theoretical Chemistry

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