caa a22 4500 475783239 CHVBK 20180406123650.0 cr unu---uuuuu 170329e20001101xx s 000 0 eng 10.1023/A:1008975812793 doi (NATIONALLICENCE)springer-10.1023/A:1008975812793 Effect of sintering parameters on the density and microstructure of carbonate hydroxyapatite [Elektronische Daten] [J. Barralet, S. Best, W. Bonfield] This work documents an investigation into the effect of water on the density and microstructure of carbonate hydroxyapatite in carbon dioxide sintering atmospheres. Carbonate apatites with carbonate contents of between 3.2 and 7.8 wt % were precipitated and the precipitates were formed into dry gels. Isothermal and isochronal sintering experiments were performed under dry carbon dioxide and wet carbon dioxide (containing 3 wt % water) atmospheres. The effect of carbonate content was studied by using two gels both with a green density of 37% and with carbonate contents of 5.8 and 7.8 wt %. Both isothermal and isochronal experiments demonstrated that bloating of the apatite occurred and this behavior was associated with the loss of carbonate from the apatite. It was found that only in wet carbon dioxide atmospheres fully dense translucent carbonate apatite could be formed. 93% dense carbonate apatite was formed after 4 h sintering at temperatures as low as 700 °C. © 2000 Kluwer Academic Publishers Kluwer Academic Publishers, 2000 Barralet J. Biomaterials Unit, University of Birmingham, Dental School, St. Chad's Queensway, B4 6NN, Birmingham, UK aut Best S. IRC in Biomedical Materials, Queen Mary and Westfield College, Mile End Road, E1 4NS, London, UK aut Bonfield W. IRC in Biomedical Materials, Queen Mary and Westfield College, Mile End Road, E1 4NS, London, UK aut Journal of Materials Science: Materials in Medicine Kluwer Academic Publishers 11/11(2000-11-01), 719-724 0957-4530 11:11<719 2000 11 10856 https://doi.org/10.1023/A:1008975812793 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1008975812793 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Barralet J. Biomaterials Unit, University of Birmingham, Dental School, St. Chad's Queensway, B4 6NN, Birmingham, UK aut NATIONALLICENCE 700 1- Best S. IRC in Biomedical Materials, Queen Mary and Westfield College, Mile End Road, E1 4NS, London, UK aut NATIONALLICENCE 700 1- Bonfield W. IRC in Biomedical Materials, Queen Mary and Westfield College, Mile End Road, E1 4NS, London, UK aut NATIONALLICENCE 773 0- Journal of Materials Science: Materials in Medicine Kluwer Academic Publishers 11/11(2000-11-01), 719-724 0957-4530 11:11<719 2000 11 10856 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer