The Structure of an RF-Magnetron Sputter-Deposited Silicate-Containing Hydroxyapatite-Based Coating Investigated by High-Resolution Techniques Full article
Journal |
Surface and Coatings Technology
ISSN: 0257-8972 , E-ISSN: 1879-3347 |
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Output data | Year: 2013, Volume: 218, Pages: 39-46 Pages count : 7 DOI: 10.1016/j.surfcoat.2012.12.023 | ||||||||||
Tags | Calcium phosphate, Coating, Implant, Nanocomposite, RF-magnetron sputtering, Silicate | ||||||||||
Authors |
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Affiliations |
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Funding (7)
1 | The Ministry of Education and Science of the Russian Federation | 14.B37.21.1620 |
2 | The Ministry of Education and Science of the Russian Federation | 14.B37.21.1918 |
3 | The Ministry of Education and Science of the Russian Federation | 16.740.11.0205 |
4 | The Ministry of Education and Science of the Russian Federation | 11-03/2012 |
5 | German Academic Exchange Service | |
6 | Federal Ministry of Education and Research | RUS 10/020 |
7 | Council for Grants of the President of the Russian Federation | МК-1149.2012.8 |
Abstract:
A biocompatible nanostructured silicate-containing hydroxyapatite-based (Si-HA) thin coating was deposited by radio-frequency (RF) magnetron sputtering on silicon and titanium substrates. The morphology of the Si-HA coating was pore-free, dense and followed the topography of the underlying substrates. Energy-dispersive X-ray spectroscopy (EDX) gave molar Ca/P and Ca/(P + Si) ratios of 1.78 and 1.45, respectively. According to XRD-analysis, the coating was nanocrystalline with a crystallite size in the range of 10–50 nm. The ultrastructure of the coating was analyzed by high-resolution transmission electron spectroscopy (HRTEM) combined with fast Fourier transform (FFT) analysis. The average crystallite size calculated by the Rietveld method was in good agreement with the HRTEM results. Moreover, HRTEM-observations indicated the presence of atomic layer misorientations originating from imperfections between the nanocrystals in the coating. The average coating nanohardness (11.6 ± 1.7 GPa) was significantly higher than that of the uncoated Ti substrate (4.0 ± 0.3 GPa), whereas no significant difference between the Young's modulus of the coating (125 ± 20 GPa) and the substrate (115 ± 10 GPa) was found. Immersion of the coated substrates in simulated body fluid (SBF) led to the deposition of an apatite layer.
Cite:
Surmeneva M.A.
, Chaikina M.V.
, Zaikovskiy V.I.
, Pichugin V.F.
, Buck V.
, Prymak O.
, Epple M.
, Surmenev R.A.
The Structure of an RF-Magnetron Sputter-Deposited Silicate-Containing Hydroxyapatite-Based Coating Investigated by High-Resolution Techniques
Surface and Coatings Technology. 2013. V.218. P.39-46. DOI: 10.1016/j.surfcoat.2012.12.023 WOS Scopus РИНЦ
The Structure of an RF-Magnetron Sputter-Deposited Silicate-Containing Hydroxyapatite-Based Coating Investigated by High-Resolution Techniques
Surface and Coatings Technology. 2013. V.218. P.39-46. DOI: 10.1016/j.surfcoat.2012.12.023 WOS Scopus РИНЦ
Dates:
Submitted: | Jul 7, 2012 |
Accepted: | Dec 17, 2012 |
Published online: | Dec 29, 2012 |
Published print: | Mar 15, 2013 |
Identifiers:
Web of science | WOS:000316422900006 |
Scopus | 2-s2.0-84878851762 |
Elibrary | 20442749 |
Chemical Abstracts | 2013:93627 |
Chemical Abstracts (print) | 159:376635 |
OpenAlex | W2044564252 |