Influence of temperature, ripening time and calcination on the morphology and crystallinity of hydroxyapatite nanoparticles
journal contributionposted on 2016-06-21, 08:31 authored by Yongxin Pang, Xujin BaoXujin Bao
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.
- Aeronautical, Automotive, Chemical and Materials Engineering
Published inJOURNAL OF THE EUROPEAN CERAMIC SOCIETY
Pages1697 - 1704 (8)
CitationPANG, 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.1697-1704
Publisher© Elsevier Science Ltd
- VoR (Version of Record)
Publisher statementThis 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/
NotesThis paper is closed access.