Paper Title:
Phase Evolution of Thermally Treated Amorphous Tricalcium Phosphate Nanoparticles
  Abstract

X-ray amorphous tricalcium-phosphate nanoparticles (ATCP) produced by flame spray synthesis were heat-treated at temperatures between 500 and 1000 °C and analyzed in situ by X-ray powder diffraction. The main phase occurring after crystallisation at 525 °C was α-TCP, minor phases were identified as β-TCP and hydroxyapatite. More elevated temperatures induced crystallite growth and the transformation of α-TCP into β-TCP. Above 900 °C no α-TCP was traceable anymore. α’-TCP was not observed in the experiment. This study shows that nanoparticulate α-TCP can be obtained by thermal treatment of an amorphous TCP nanoparticle in a temperature range where sintering effects such as particle growth and densification are moderate or nearly negligible.

  Info
Periodical
Key Engineering Materials (Volumes 396-398)
Main Theme
Edited by
Marcelo Prado and Cecília Zavaglia
Pages
595-598
DOI
10.4028/www.scientific.net/KEM.396-398.595
Citation
N. Döbelin, T. J. Brunner, W. J. Stark, M. Eggimann, M. Fisch, M. Bohner, "Phase Evolution of Thermally Treated Amorphous Tricalcium Phosphate Nanoparticles", Key Engineering Materials, Vols. 396-398, pp. 595-598, 2009
Online since
October 2008
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$32.00
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