Synthesis of ultrafine hydroxyapatite particles by a spray dry method

P. Luo, T. G. Nieh

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

76 Citations (Scopus)

Abstract

A technique was developed to synthesize hydroxyapatite (HA) with a nanocrystalline structure. The method involved the initial preparation of an aqueous solution using inorganic water-soluble compounds. A precursor powder mixture was subsequently formed via atomization by spray drying the aqueous solution. Calcination of the spray-dried precursor powder resulted in the formation of a nanocrystalline structure. Structural and morphological characterizations of the synthesized material were conducted using X-ray diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), and electron microscopy (SEM and TEM). Particle size distribution was analyzed using X-ray peak broadening and TEM techniques. The thermal stability of the powder was also characterized and was compared with that of powders made using conventional precipitation methods. © 1995.
Original languageEnglish
Pages (from-to)75-78
JournalMaterials Science and Engineering C
Volume3
Issue number2
DOIs
Publication statusPublished - Nov 1995
Externally publishedYes

Bibliographical note

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Research Keywords

  • Hydroxyapatite
  • Nanocrystalline structure
  • Thermal stability

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