| Issue |
MATEC Web of Conferences
Volume 7, 2013
JA 2013 – Journées Annuelles de la SF2M 2013 / SF2M Annual Meeting 2013
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|---|---|---|
| Article Number | 04020 | |
| Number of page(s) | 2 | |
| Section | Colloque 4 : Biomatériaux / Biomaterials | |
| DOI | https://doi.org/10.1051/matecconf/20130704020 | |
| Published online | 07 November 2013 | |
Processing and properties of calcium phosphates bioceramics by hot isostatic pressing
1 Belgian Ceramic Research Centre (BCRC-EMRA), avenue gouverneur Cornez 4, 7000 Mons, Belgium
2 Laboratoire des Matériaux Céramiques et Procédés Associés (LMCPA), Université Lille-Nord de France, 59800 Lille, France
3 UVHC, ZI Champ de l'abbesse, 59600 Maubeuge, France
Stoichiometric β-tricalcium phosphate (β-TCP), hydroxyapatite (HA) and biphasic calcium phosphate (TCP/HA 60/40 %wt, BCP40) powders were synthesized by chemical precipitation of aqueous solutions of diammonium phosphate and calcium nitrate. After a calcination treatment and a milling step, powders were shaped by slip-casting. The sintering temperature effect on the density and the average grain size was investigated. By natural sintering, densities between 98 and 99.8% were obtained. Hot Isostatic Pressing (HIP) treatment was carried out after a pre-sintering of these materials. Transparent or translucent samples were obtained, indicating a relative density very close to the theoretical value (>99.9%). Mechanical properties (three-point bending strength, fracture toughness, Young's modulus and Vickers hardness) were measured on hipped materials with similar grain size (∼0.7μm).
© Owned by the authors, published by EDP Sciences, 2013
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 2.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.