Preparing hydroxyapatite powders with controlled morphology

P. Luo, T. G. Nieh

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

116 Citations (Scopus)

Abstract

We developed a synthesis method for hydroxyapatite particles with different morphologies. The process involved chemical precipitation and spray drying, which produced spherical, agglomerated hydroxyapatite granules with controlled particle sizes and structures. These granules contained nano-particles with an average crystalline size of about 10 nm. We controlled the morphologies of the granules by adjusting the spray-drying conditions, such as the volume fraction of feed slurry and the atomization pressure. The spray-dried granules were doughnut shapes, solid spheres, or hollow spheres, and their sizes were controlled by varying the atomization pressure and the concentration of the feed slurry.
Original languageEnglish
Pages (from-to)1959-1964
JournalBiomaterials
Volume17
Issue number20
DOIs
Publication statusPublished - 1996
Externally publishedYes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Research Keywords

  • Chromatography columns
  • Particle size
  • Spherical hydroxyapatite
  • Spray drying

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