Reaction sintering and mechanical properties of hydroxyapatite-zirconia composites with calcium fluoride additions

Hae Won Kim, Young Hag Koh, Byung Ho Yoon, Hyoun Ee Kim

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

The effects of calcium fluoride (CaF2) additions on the densification and mechanical properties of hydroxyapatite-zirconia composites (HA-ZrO2) were investigated. When small amount of CaF2 was added, the density of the composites was markedly enhanced. The reactions of HA with CaF2, which led to the formation of fluorapatite (FA), were attributed to the observed improvements in densification. When HA-20-vol%-ZrO2 composites were sintered, with the addition of 5 vol% of CaF2, in air at 1300°C, the density of the specimen approach ed 98% of the theoretical value. The flexural strength and fracture toughness of the composites were also improved, as a result of the enhanced densification.

Original languageEnglish
Pages (from-to)1634-1636
Number of pages3
JournalJournal of the American Ceramic Society
Volume85
Issue number6
DOIs
Publication statusPublished - 2002 Jun

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Reaction sintering and mechanical properties of hydroxyapatite-zirconia composites with calcium fluoride additions'. Together they form a unique fingerprint.

  • Cite this