Preparation and compressive strength of α-tricalcium phosphate based cement dispersed with ceramic particles

K. Takahashi, Y. Fujishiro, Shu Yin, Tsugio Sato

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

The preparation and strength of an α-tricalcium phosphate (α-Ca3(PO4)2) cement with and without dispersed particles of polycrystalline 3 mol% Y2O3 doped tetragonal zirconia (3Y-TZP), polycrystalline alumina (Al2O 3), and amorphous silica (SiO2) were investigated. α-Tricalcium phosphate transformed completely to calcium deficient hydroxyapatite (Ca10-x(HPO4)x(PO 4)6-x(OH)2-x) after curing in simulated body fluid at 37 °C for 120 h. The compressive strength of a cement without dispersed particles cured at 37 °C for 168 h was 42 MPa but increased to 48, 64, and 67 MPa by dispersing 7.5 wt.% of Al2O3, 3Y-TZP, and SiO2 particles, respectively. The improvement of compressive strength seemed to depend on the affinity of the cement matrix and dispersed particles.

Original languageEnglish
Pages (from-to)199-203
Number of pages5
JournalCeramics International
Volume30
Issue number2
DOIs
Publication statusPublished - 2004 Feb 10

Keywords

  • B. Composites
  • C. Mechanical properties
  • D. Apatite
  • E. Biomedical applications
  • E. Structural

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Process Chemistry and Technology
  • Surfaces, Coatings and Films
  • Materials Chemistry

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