Densification of transparent yttrium aluminum garnet (YAG) by SPS processing

Naum Frage, Sergey Kalabukhov, Nataliya Sverdlov, Vladimir Ezersky, Moshe P. Dariel

Research output: Contribution to journalArticlepeer-review

95 Scopus citations

Abstract

Nano-size YAG powder co-mixed with 0.25 wt% LiF was used to fabricate transparent polycrystalline YAG specimens by means of the Spark Plasma Sintering (SPS) technique. The presence of the LiF additive in the initial nano-powder allows obtaining fully dense disc shaped (up to 4. mm thick) transparent specimens at the outcome of a 2 h treatment at 1300°C. The presence of LiF plays a key role in the mass transport related effects during the densification of YAG to full density and also in the elimination of the residual carbon contamination, allowing reaching a level of optical transmittance close to the theoretical value.

Original languageEnglish
Pages (from-to)3331-3337
Number of pages7
JournalJournal of the European Ceramic Society
Volume30
Issue number16
DOIs
StatePublished - 1 Dec 2010

Keywords

  • LiF additive
  • Optical transparency
  • SPS
  • YAG

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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