Phase Evolution of Thermally Treated Amorphous Tricalcium Phosphate Nanoparticles

Abstract:

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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 et al., "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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Price:

$35.00

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