Le composite phosphate tricalcique–fluorapatite présente une bonne aptitude au frittage à 1300 °C. Ainsi, des taux de densification de 90% ont pu être atteints pour
The tricalcium phosphate–fluorapatite composite has a good aptitude to sintering at 1300 °C, so a densification rate of about 90% was reached with 33.16 wt% of fluorapatite. At 1300 °C, the increase of the content of fluorapatite in the composite favours the formation of the α tricalcium phosphate phase. The 31P MAS-NMR analysis reveals the presence of three tetrahedral P sites for the tricalcium phosphate, whereas the fluorapatite possesses only one. At temperatures higher than 1300 °C, the densification is hindered by grain growth and the formation of large pores.
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Keywords: Tricalcium phosphate, Fluorapatite, Composite, Sintering, Densification, Microstructure, 31P MAS-NMR
Foued Ben Ayed 1, 2 ; Jamel Bouaziz 1
@article{CRPHYS_2007__8_1_101_0, author = {Foued Ben Ayed and Jamel Bouaziz}, title = {\'Elaboration et caract\'erisation d'un biomat\'eriau \`a base de phosphates de calcium}, journal = {Comptes Rendus. Physique}, pages = {101--108}, publisher = {Elsevier}, volume = {8}, number = {1}, year = {2007}, doi = {10.1016/j.crhy.2006.10.017}, language = {fr}, }
Foued Ben Ayed; Jamel Bouaziz. Élaboration et caractérisation d'un biomatériau à base de phosphates de calcium. Comptes Rendus. Physique, Observation of black holes and extreme gravitational events, Volume 8 (2007) no. 1, pp. 101-108. doi : 10.1016/j.crhy.2006.10.017. https://comptes-rendus.academie-sciences.fr/physique/articles/10.1016/j.crhy.2006.10.017/
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