Novel substantial reductions in sintering temperatures for preparation of transparent hydroxyapatite bioceramics under ultrahigh pressure

Ning Tan, Zili Kou*, Ding Yonghui, Yang Leng, Chenji Liu, Duanwei He

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

A novel method for preparing highly transparent hydroxyapatite bioceramics at relatively low temperatures (325-450 °C), i.e. about 60% lower compared with other commonly used preparation methods, has been developed under ultrahigh pressure (UHP; 2.0-5.0 GPa). UHP can remarkably restrain grain growth, enhance density and microhardness and we have characterized the morphology, density and mechanical properties of the prepared ceramics. We reason that these bioceramics are highly transparent due to the negligible light scattering from the nanosized grains and pores in the samples.

Original languageEnglish (US)
Pages (from-to)819-822
Number of pages4
JournalScripta Materialia
Volume65
Issue number9
DOIs
StatePublished - Nov 2011

Keywords

  • Hardness
  • Hydroxyapatite
  • Microstructure
  • Optical transmission
  • Ultrahigh-pressure sintering

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys

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