Paper Title:

Controlling the Reactivity of Calcium Phosphate Cements

Periodical Key Engineering Materials (Volumes 361 - 363)
Main Theme Bioceramics 20
Edited by Guy Daculsi and Pierre Layrolle
Pages 295-298
DOI 10.4028/www.scientific.net/KEM.361-363.295
Citation Marc Bohner et al., 2007, Key Engineering Materials, 361-363, 295
Online since November, 2007
Authors Marc Bohner, Tobias J. Brunner, Wendelin J. Stark
Keywords Calcium Phosphate, Cement, Kinetic, Nanosize, Particle Size, Reaction, Tricalcium Phosphate
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Abstract

The effect of composition on the reactivity of a calcium phosphate cement (CPC) made of tricalcium phosphate (TCP) – water mixtures was investigated by isothermal calorimetry at 37ºC. The parameters of interest were the mean particle size of the powder, the use of small amounts of nanosized hydroxyapatite powder, and the phosphate concentration and the pH of the aqueous solution. The results could be well explained by theoretical considerations. The main parameter controlling CPC reactivity was TCP particle size.