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Download fileInfluence of temperature, ripening time and calcination on the morphology and crystallinity of hydroxyapatite nanoparticles
Nano-sized hydroxyapatite (HA) particles were prepared by chemical precipitation through aqueous solutions of calcium
chloride and ammonium hydrogenphosphate. The influence of temperature, ripening time and calcination on the crystallinity
and morphology of the HA nanoparticles were investigated. It was found that the crystallinity and crystallite size increased
with the increase of synthetic temperature and ripening time. XRD and TEM results showed that the morphology change
of HA nanoparticles was related to their crystallinity. High crystallinity of HA led to regular shape and smooth surface of
the nanoparticles. The crystallinity of HA powders increased greatly after calcination at 650 C for 6 h but the change of
the crystallite size after calcination was dependent on the crystallinity and crystallite size of ‘‘as prepared’’ HA nanoparticles.
History
School
- Aeronautical, Automotive, Chemical and Materials Engineering
Department
- Materials
Published in
JOURNAL OF THE EUROPEAN CERAMIC SOCIETYVolume
23Issue
10Pages
1697 - 1704 (8)Citation
PANG, Y. and BAO, X., 2003. Influence of temperature, ripening time and calcination on the morphology and crystallinity of hydroxyapatite nanoparticles. Journal of the European Ceramic Society, 23 (10), pp.1697-1704Publisher
© Elsevier Science LtdVersion
- VoR (Version of Record)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/Publication date
2003Notes
This paper is closed access.ISSN
0955-2219Publisher version
Language
- en