Bioceramics: Spark Plasma Sintering (SPS) of Calcium Phosphates |
| Journal |
Advances in Science and Technology (Volume 49) |
| Volume |
Materials in Clinical Applications VII |
| Edited by |
P. VINCENZINI and R. GIARDINO |
| Pages |
45-50 |
| DOI |
10.4028/www.scientific.net/AST.49.45 |
| Online since |
October, 2006 |
| Authors |
Christophe Drouet,
C. Largeot,
G. Raimbeaux,
C. Estournès,
Gérard Dechambre,
Christèle Combes,
Christian Rey
|
| Keywords |
Bioceramic, Nanocrystalline Apatites, Spark Plasma Sintering (SPS) |
| Abstract |
Calcium phosphates (Ca-P) are major constituents of calcified tissues, and are also
extensively used for the elaboration of biomaterials. However, the usual high-temperature sintering
processes generally lead to strong alterations of their chemical, physical and biological properties.
Spark plasma sintering (SPS) is a non-conventional sintering technique based on the use of pulsed
current, enabling fast heating and cooling rates, and lower sintering temperatures are often
observed. The sintering of several orthophosphates (DCPD, amorphous TCP, beta-TCP, OCP, HA
and biomimetic nanocrystalline apatites) by SPS was investigated in order to track potential
advantages of this technique over usual Ca-P sintering methods. Special attention was given to the
SPS consolidation of highly bioactive nanocrystalline apatites. |
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