RT Journal Article
T1 Comparison of Physical-chemical and Mechanical Properties of Chlorapatite and Hydroxyapatite Plasma Sprayed Coatings
A1 Demnati, Imane
A1 Grossin, David
A1 Marsan, Olivier
A1 Bertrand, Ghislaine
A1 Collonges, Gérard
A1 Combes, Christèle
A1 Parco, Maria
A1 Braceras, I.
A1 Alexis, Joel
A1 Balcaen, Yannick
A1 Rey, Christian
AB Chlorapatite can be considered a potential biomaterial for orthopaedic applications. Its use as plasma-sprayed coating could be of interest considering its thermal properties and particularly its ability to melt without decomposition unlike hydroxyapatite. Chlorapatite (ClA) was synthesized by a high-temperature ion exchange reaction starting from commercial stoichiometric hydroxyapatites (HA). The ClA powder showed similar characteristics as the original industrial HA powder, and was obtained in the monoclinic form. The HA and ClA powders were plasma-sprayed using a low-energy plasma spraying system with identical processing parameters. The coatings were characterized by physical-chemical methods, i.e. X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and Raman spectroscopy, including distribution mapping of the main phases detected such as amorphous calcium phosphate (ACP), oxyapatite (OA), and HA or ClA. The unexpected formation of oxyapatite in ClA coatings was assigned to a side reaction with contaminating oxygenated species (O2, H2O). ClA coatings exhibited characteristics different from HA, showing a lower content of oxyapatite and amorphous phase. Although their adhesion strength was found to be lower than that of HA coatings, their application could be an interesting alternative, offering, in particular, a larger range of spraying conditions without formation of massive impurities.
YR 2015
FD 2015
LA eng
NO Demnati , I , Grossin , D , Marsan , O , Bertrand , G , Collonges , G , Combes , C , Parco , M , Braceras , I , Alexis , J , Balcaen , Y & Rey , C 2015 , ' Comparison of Physical-chemical and Mechanical Properties of Chlorapatite and Hydroxyapatite Plasma Sprayed Coatings ' , unknown , vol. unknown , pp. 42-55 . https://doi.org/10.2174/1874120701509010042
NO Publisher Copyright: © Demnati et al.; Licensee Bentham Open.
DS TECNALIA Publications
RD 20 jul 2024