Porous CaP Coatings Formed by Combination of Plasma Electrolytic Oxidation and RF-Magnetron Sputtering
| Autor: | A. Y. Fedotkin, A.I. Kozelskaya, Alexander Gigilev, Natalia Korotchenko, Evgeniy Shesterikov, Alexandr Vorobyev, Yuriy Zhukov, Gleb Dubinenko, Sergei I. Tverdokhlebov |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Scanning electron microscope radio frequency magnetron sputtering (RFMS) technology industry and agriculture Surfaces and Interfaces Sputter deposition engineering.material Plasma electrolytic oxidation Nanoindentation plasma electrolytic oxidation (PEO) Surfaces Coatings and Films Crystallinity Coating Chemical engineering X-ray photoelectron spectroscopy Sputtering lcsh:TA1-2040 calcium-phosphate (CaP) coating Materials Chemistry engineering lcsh:Engineering (General). Civil engineering (General) |
| Zdroj: | Coatings Volume 10 Issue 11 Coatings, Vol 10, Iss 1113, p 1113 (2020) |
| ISSN: | 2079-6412 |
| DOI: | 10.3390/coatings10111113 |
| Popis: | The porous CaP subcoating was formed on the Ti6Al4V titanium alloy substrate by plasma electrolytic oxidation (PEO). Then, upper coatings were formed by radio frequency magnetron sputtering (RFMS) over the PEO subcoating by the sputtering of various CaP powder targets: &beta tricalcium phosphate (&beta TCP), hydroxyapatite (HA), Mg-substituted &beta tricalcium phosphate (Mg-&beta TCP) and Mg-substituted hydroxyapatite (Mg-HA), Sr-substituted &beta tricalcium phosphate (Sr-&beta TCP) and Sr-substituted hydroxyapatite (Sr-HA). The coating surface morphology was studied by scanning electron and atomic force microscopy. The chemical composition was determined by X-ray photoelectron spectroscopy. The phase composition of the coatings was studied by X-ray diffraction analysis. The Young&rsquo s modulus of the coatings was studied by nanoindentation test. RF-magnetron sputtering treatment of PEO subcoating resulted in multileveled roughness, increased Ca/P ratio and Young&rsquo s modulus and enrichment with Sr and Mg. Sputtering of the upper layer also helped to adjust the coating crystallinity. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|