Influence of temperature, ripening time and calcination on the morphology and crystallinity of hydroxyapatite nanoparticles

By Y. Pang, X. Bao. 2003

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Abstract 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.

Subfields: Biomaterials, Biomedical Engineering, Inorganic Chemistry

View Paper: https://www.semanticscholar.org/paper/48aaf3073b44372259215848e5b8c9a9ab7b0715

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In Biomaterials

1. Hongjian Zhou
2. Jaebeom Lee

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2. Jaebeom Lee

Citations in the corpus

• Nanoscale hydroxyapatite particles for bone tissue engineering. (2011, background): “preparation [37] and various wet chemistry techniques [38,39].”