Cold sintering process for 8 mol%Y2O3-stabilized ZrO2 ceramics

Hanzheng Guo, Thorsten J.M. Bayer, Jing Guo, Amanda Baker, Clive A. Randall

Research output: Contribution to journalArticlepeer-review

33 Scopus citations

Abstract

In this communication, the cold sintering process was applied to benefit the green body compaction of 8 mol%Y2O3-stablized ZrO2 ceramics (8Y-YSZ). Compared to conventionally processed ceramics, an enhanced densification behavior was demonstrated in cold sintering related ones following a second step conventional sintering process. Dense ceramics up to ∼96% of theoretical density were achieved after sintering at 1200 °C. The resulted ceramics demonstrated a fine microstructure with a grain size ∼200 nm. A mechanical performance with a Vickers hardness of 13.6 GPa and a fracture toughness of 2.85 MPa m1/2 was also reported.

Original languageEnglish (US)
Pages (from-to)2303-2308
Number of pages6
JournalJournal of the European Ceramic Society
Volume37
Issue number5
DOIs
StatePublished - May 1 2017

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

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