In Situ Ultraviolet Raman Study on the Phase Transition of Hafnia up to 2085 K

Hirotaka Fujimori, Masatomo Yashima, Masato Kakihana, Masahiro Yoshimura

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

We have recently demonstrated that the Raman scattering through ultraviolet (UV) excitation is eminently well suited for in situ investigation of materials at high temperatures up to 1773 K. Here we report successful Raman measurements of HfO2 up to 2085 K, using only a 100 mW power of UV laser line. The monoclinic-to-tetragonal transformation finished around 2080 K on heating, while the monoclinic phase appeared at 2018 K on cooling.

Original languageEnglish
Pages (from-to)663-665
Number of pages3
JournalJournal of the American Ceramic Society
Volume84
Issue number3
DOIs
Publication statusPublished - 2001 Jan 1

Fingerprint

Ultraviolet lasers
phase transition
Raman scattering
laser
Phase transitions
scattering
Cooling
heating
cooling
Heating
Temperature
material
in situ

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Geology
  • Geochemistry and Petrology
  • Materials Chemistry

Cite this

Fujimori, Hirotaka ; Yashima, Masatomo ; Kakihana, Masato ; Yoshimura, Masahiro. / In Situ Ultraviolet Raman Study on the Phase Transition of Hafnia up to 2085 K. In: Journal of the American Ceramic Society. 2001 ; Vol. 84, No. 3. pp. 663-665.
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In Situ Ultraviolet Raman Study on the Phase Transition of Hafnia up to 2085 K. / Fujimori, Hirotaka; Yashima, Masatomo; Kakihana, Masato; Yoshimura, Masahiro.

In: Journal of the American Ceramic Society, Vol. 84, No. 3, 01.01.2001, p. 663-665.

Research output: Contribution to journalArticle

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