Processing of Ca-P Ceramics, Surface Characteristics and Biological Performance

S. Cazalbou*, C. Bastié, G. Chatainier, N. Theilgaard, N. Svendsen, R. Martinetti, L. Dolcini, J. Hamblin, G. Stewart, L. Di Silvio, N. Gurav, R. Quarto, S. Overgaard, B. Zippor, A. Lamure, C. Combes, C. Rey

*Corresponding author for this work


Surface pollution by Mg and carbon has been identified by X-Ray Photoelectron Spectroscopy (XPS) analysis on monophasic (100% stoichiometric hydroxyapatite) or biphasic (70% hydroxyapatite, 30% β-tricalcium phosphate) ceramics obtained by sintering of Ca-P powder of standard purity. Magnesium was the main impurity, although it is present only as traces in synthesised Ca-P powders, it concentrates on the surface of the ceramic during the sintering process due to its poor solubility in HA. Carbon pollution is common on all materials and generally assigned to the adsorption of atmospheric volatile organic compounds, although other types of pollution may occur. These surface species alter the surface energy of the ceramics which has been shown to be related to cell adhesion, The change in surface composition and physical properties can interfere with the sintering process as well as with the biological behaviour of the ceramics and a special effort should be made to control these events at all levels from processing to handling, storage and packaging.

Original languageEnglish
JournalKey Engineering Materials
Pages (from-to)833-836
Number of pages4
Publication statusPublished - 2004
EventThe Annual Meeting of the International Society for Ceramics in Medicine - Porto, Portugal
Duration: 6 Nov 20039 Nov 2003


ConferenceThe Annual Meeting of the International Society for Ceramics in Medicine


  • Apatite
  • Surface energy
  • Tri-calcium phosphate
  • XPS


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