| Title |
Investigation on the structural and microstructural properties of copper-doped hydroxyapatite coatings deposited using solution precursor plasma spraying |
|
Authors |
Romnick Unabia, Simon Bonebeau, Rolando T. Candidato, Jr., Jenny Jouin, Olivier, Noguera, Lech Pawlowski |
|
Publication date |
2019/06/18 |
|
Journal |
Journal of the European Ceramic Society |
| Volume |
Volume 39 |
| Pages |
9 pages |
| Publisher |
Elsevier |
| Abstract |
Structural and microstructural investigation of solution precursor plasma sprayed copper-doped hydroxyapatite
coatings with different Cu dopant concentration was carried out. Scanning electron micrographs did not show
any significant morphological changes at the surface and cross-section of the coatings as copper content increases.
X-ray diffraction results showed the decrease in the HA phase content from 93 wt.% to 14 wt.% and its
degree of crystallinity from 94% to 85% with increasing copper concentration. Raman and IR spectra revealed
the broadening and red-shifting of the phosphate bands due to the distortion of the HA structure caused by
possible insertion of copper. X-ray photoelectron spectroscopy identified Cu and Cu2+ as copper species incorporated
in HA. Rietveld refinement showed an increase in the lattice a and c parameter and expansion of the
unit cell volume associated to an interstitial insertion of Cu along the hexagonal channel of the HA structure. |
| Index terms / Keywords |
Copper-doped hydroxyapatite, Solution precursor plasma spraying, Microstructure investigation, Interstitial insertion |
| DOI |
|
Mindanao State
University - Iligan Institute of Technology