Sonochemical synthesis of calcium phosphate powders

J Mater Sci Mater Med. 2007 May;18(5):669-75. doi: 10.1007/s10856-006-0006-0. Epub 2006 Nov 30.

Abstract

beta-tricalcium phosphate (beta-TCP) and biphasic calcium phosphate powders (BCP), consisting of hydroxyapatite (HA) and beta-TCP, were synthesized by thermal decomposition of precursor powders obtained from neutralization method. The precursor powders with a Ca/P molar ratio of 1.5 were prepared by adding an orthophosphoric acid (H(3)PO(4)) solution to an aqueous suspension containing calcium hydroxide (Ca(OH)(2)). Mixing was carried out by vigorous stirring and under sonochemical irradiation at 50 kHz, respectively. Glycerol and D-glucose were added to evaluate their influence on the precipitation of the resulting calcium phosphate powders. After calcination at 1000 degrees C for 3 h BCP nanopowders of various HA/beta-TCP ratio were obtained.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Biocompatible Materials / chemical synthesis
  • Biocompatible Materials / chemistry
  • Calcium Phosphates / chemical synthesis*
  • Calcium Phosphates / chemistry
  • Chemical Precipitation
  • Hot Temperature
  • Hydroxyapatites / chemical synthesis
  • Hydroxyapatites / chemistry
  • Microscopy, Electron, Scanning
  • Powder Diffraction
  • Powders / chemical synthesis
  • Powders / chemistry
  • Sonication
  • Spectroscopy, Fourier Transform Infrared

Substances

  • Biocompatible Materials
  • Calcium Phosphates
  • Hydroxyapatites
  • Powders
  • tricalcium phosphate