Double Step Stirring: A Novel Method For Precipitation of Nano-Sized Hydroxyapatite Powder

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Hazar A. B., Koca Y.

Digest Journal Of Nanomaterials And Biostructures, vol.4, no.1, pp.73-81, 2009 (SCI-Expanded)

  • Publication Type: Article / Article
  • Volume: 4 Issue: 1
  • Publication Date: 2009
  • Journal Name: Digest Journal Of Nanomaterials And Biostructures
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.73-81
  • Yıldız Technical University Affiliated: Yes


The effect of three different stirring techniques (magnetic, ultrasonic and double-step stirring) on the properties of hydroxyapatite (HA) prepared from calcium hydroxide [Ca(OH)2] and phosphoric acid [H3PO4] was investigated. The employed precipitation processes were found to be suitable for the production of nano-sized pure HA powders. Sample characterization was achieved by powder X-ray diffraction (XRD), Fourier transformed infrared (FT-IR) transmission spectroscopy, scanning electron microscopy (SEM), density and surface area measurements. The double-step stirring technique played an important role to progress the homogenous reaction and the preparation of pure and fine HA powder.