Transparent yttria produced by spark plasma sintering at moderate temperature and pressure profiles

Liqiong An, Akihiko Ito, Takashi Goto

Research output: Contribution to journalArticlepeer-review

57 Citations (Scopus)

Abstract

Transparent yttria (Y 2O 3) bodies were fabricated by spark plasma sintering, and the effects of the sintering temperature on relative density, microstructure, and the optical and mechanical properties of Y 2O 3 bodies were investigated. Fully dense Y 2O 3 bodies were obtained at sintering temperatures 1473-1873K. The average grain size was 0.24-0.32μm at 1473-1573K, and steadily increased to 1.97μm with an increase in temperature to 1823K. The highest transmittance was obtained in the Y 2O 3 body sintered at 1573K and annealed at 1323K, showing 81.7% (99% of the theoretical value) at a wavelength of 2000nm.

Original languageEnglish
Pages (from-to)1035-1040
Number of pages6
JournalJournal of the European Ceramic Society
Volume32
Issue number5
DOIs
Publication statusPublished - 2012 May

Keywords

  • Grain growth
  • Optical property
  • Sintering
  • Spark plasma sintering
  • Y O

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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