Comparison of physical-chemical and mechanical properties of chlorapatite and hydroxyapatite plasma sprayed coatings

被引：13

作者：

Demnati, Imane ^{[1
]}

Grossin, David ^{[1
]}

Marsan, Olivier ^{[1
]}

Bertrand, Ghislaine ^{[1
]}

Collonges, Gérard ^{[2
]}

Combes, Christèle ^{[1
]}

Parco, Maria ^{[3
]}

Braceras, Inigo ^{[3
]}

Alexis, Joel ^{[4
]}

Balcaen, Yannick ^{[4
]}

Rey, Christian ^{[1
]}

机构：

[1] Université de Toulouse, CIRIMAT, INPT-CNRS-UPS, ENSIACET, Toulouse, France

[2] PS: Projection Plasma System, Montbazens, France

[3] Mikeletegi Pasealekua 2, Donostia-San Sebastian, Spain

[4] Université de Toulouse, INPT-ENIT, Laboratoire Génie de Production, Tarbes, France

来源：

Open Biomedical Engineering Journal | 2015年 / 9卷

关键词：

Plasma spraying - Fourier transform infrared spectroscopy - Ion exchange - Mechanical testing - X ray diffraction - Plasma jets - Calcium phosphate;

D O I：

10.2174/1874120701509010042

中图分类号：

学科分类号：

摘要：

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. © Demnati et al.; Licensee Bentham Open.

引用

页码：42 / 55