6533b82dfe1ef96bd1290b70
RESEARCH PRODUCT
RF magnetron-sputtered coatings deposited from biphasic calcium phosphate targets for biomedical implant applications
Olga A. BelyavskayaArnolds UbelisJulietta V. RauKonstantin A. ProsolovK.a. GrossYu.p. SharkeevK. S. Popovasubject
DiffractionMaterials scienceBiocompatibilityBiomedical Engineeringchemistry.chemical_elementBiphasic hydroxyapatite-tricalcium02 engineering and technologyCalciumengineering.material010402 general chemistryPlasma coatings01 natural sciencesArticleBiomaterialssymbols.namesakeCoatinglcsh:TA401-492Biphasic hydroxyapatite-tricalcium phosphate targetsThin hydroxyapatite coatingslcsh:QH301-705.5Deposition (law)phosphate targetsMetallurgySputter deposition021001 nanoscience & nanotechnology0104 chemical scienceschemistryChemical engineeringlcsh:Biology (General)Cavity magnetronsymbolsengineeringBiocompatibilitylcsh:Materials of engineering and construction. Mechanics of materialsRF-magnetron sputtering0210 nano-technologyRaman scatteringBiotechnologydescription
Bioactive calcium phosphate coatings were deposited by radio-frequency magnetron sputtering from biphasic targets of hydroxyapatite and tricalcium phosphate, sintered at different mass % ratios. According to Raman scattering and X-ray diffraction data, the deposited hydroxyapatite coatings have a disordered structure. High-temperature treatment of the coatings in air leads to a transformation of the quasi-amorphous structure into a crystalline one. A correlation has been observed between the increase in the Ca content in the coatings and a subsequent decrease in Ca in the biphasic targets after a series of deposition processes. It was proposed that the addition of tricalcium phosphate to the targets would led to a finer coating's surface topography with the average size of 78 nm for the structural elements.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-09-01 | Bioactive Materials |