β-cubic phase transition of scandia-doped zirconia solid solution: Calorimetry, x-ray diffraction, and Raman scattering

Hirotaka Fujimori, Masatomo Yashima, Masato Kakihana, Masahiro Yoshimura

Research output: Contribution to journalArticlepeer-review

50 Citations (Scopus)

Abstract

Differential scanning calorimetry and Raman spectroscopy measurements have been performed to investigate the β-cubic (c) phase transition of the compositionally homogeneous ZrO 2-22mol%ScO 1.5 solid solution. The enthalpy of transition (1.11 kJ/mol of cation) and thermal hysteresis between β- and c-phases were smaller than those between monoclinic (m) and tetragonal (t) phases of ZrO 2, reflecting the structural information that the cell volume ratio of β- to c-phases is smaller than that of m- to t-phases. Raman spectroscopy allowed us to observe the β-c phase transition, and we could obtain Raman spectra of the c-phase in the ZrO 2-ScO 1.5 system. This result was strongly supported by the observation of x-ray diffraction patterns at high temperatures.

Original languageEnglish
Pages (from-to)6493-6498
Number of pages6
JournalJournal of Applied Physics
Volume91
Issue number10 I
DOIs
Publication statusPublished - 2002 May 15
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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