Microstructural and mechanical investigation of hydroxyapatite-zirconia nanocomposites prepared by spark plasma sintering

Gréta Gergely, Filiz Cinar Sahin, Gültekin Göller, Onuralp Yücel, Csaba Balázsi

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Nano hydroxyapatite (nHA)-zirconia (ZrO2) composites have been produced by spark plasma sintering (SPS). During the SPS process low temperatures (600-950°C) and short dwelling time (5min) have been applied to avoid the decomposition of nHA as well as the reaction between nHA and ZrO2. The grain size of the sintered composites was between 200 and 1000nm. Carbon diffusion was induced from the graphite die and layered composite structure was formed. These observations might be related to the spark plasma sintering side effects. The microstructure and mechanical properties of high hydroxyapatite content zirconia composites have been found to be influenced and strongly correlated with the specialties of SPS method.

Original languageEnglish
Pages (from-to)2313-2319
Number of pages7
JournalJournal of the European Ceramic Society
Volume33
Issue number12
DOIs
Publication statusPublished - Oct 1 2013

Keywords

  • HA
  • Microstructure
  • Nanocomposite
  • Spark plasma sintering

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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