Synthesis of high purity hydroxyapatite nanopowder via sol-gel combustion process.

J Mater Sci Mater Med

Department of Chemical, Materials and Biomolecular Engineering, Institute of Materials Science, University of Connecticut, Storrs, 06269, USA.

Published: June 2009

A polymeric sol-gel combustion method has been used to synthesize nanocrystalline hydroxyapatite (HA) powder from calcium nitrate and triethyl phosphate with the addition of NH(4)OH. The sol-gel combustion process generates phase-pure nanocrystalline HA powder, as characterized using Fourier transform infrared (FTIR), X-ray diffraction (XRD), and transmission electron microscopy (TEM). Sintering of the HA powder compact at 1200 degrees C for 2 h leads to a 93% theoretical dense ceramic body. This method offers an easy route for the preparation of phase-pure nanocrystalline HA powder.

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http://dx.doi.org/10.1007/s10856-008-3685-xDOI Listing

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