| Title |
Advanced microstructural study of solution precursor plasma sprayed Zn doped hydroxyapatite coatings |
|
Authors |
Rolando T. Candidato Jr., Rachele Sergi, Jenny Jouin, Olivier Noguera, Lech Paw脙聟脗聜owski |
|
Publication date |
2017/12/26 |
|
Journal |
Journal of the European Ceramic Society |
| Volume |
Volume 38 |
| Pages |
11 pages |
| Publisher |
Elsevier |
| Abstract |
Hydroxyapatite is a bioceramic material known as orthopedic implant due to its excellent biocompatibility. From
a crystallographic aspect, HA is flexible and can accommodate different ions in its structure. Zinc (Zn) is essential
in the human body due to its role in many biological functions and is known to have antibacterial properties. In
this work, Zn doped hydroxyapatite coatings were developed by solution precursor plasma spraying using different
zinc ion concentrations. It was found that zinc addition does not modify the morphology of coatings. X-ray
diffraction analysis showed that Zn concentration greater than 10 mol% inhibits the formation of HA and favors
the formation of calcium zinc phosphate. Rietveld refinement showed that the unit cell parameters were not
substantially changed upon Zn addition. In general, the structural analysis revealed that Zn ions were highly
likely inserted at the hydroxyl column formed by the dehydroxylation of HA under high-temperature plasma
environment. |
| Index terms / Keywords |
Hydroxyapatite Hydroxyl column Solution precursor plasma spraying Zn doped HA Zn insertion mechanism |
| DOI |
|
Mindanao State
University - Iligan Institute of Technology