Synthesis of ultrafine hydroxyapatite particles by a spray dry method

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Original languageEnglish
Pages (from-to)75-78
Journal / PublicationMaterials Science and Engineering C
Issue number2
Publication statusPublished - Nov 1995
Externally publishedYes


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.

Research Area(s)

  • Hydroxyapatite, Nanocrystalline structure, Thermal stability

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