Metal Ions Supported Porous Coatings by Using AC Plasma Electrolytic Oxidation Processing
Coatings enriched with zinc and copper as well as calcium or magnesium, fabricated on titanium substrate by Plasma Electrolytic Oxidation (PEO) under AC conditions (two cathodic voltages, i.e., −35 or −135 V, and anodic voltage of +400 V), were investigated. In all experiments, the electrolytes were...
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MDPI AG
2020-08-01
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| Online Access: | https://www.mdpi.com/1996-1944/13/17/3838 |
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| author | Krzysztof Rokosz Tadeusz Hryniewicz Steinar Raaen Sofia Gaiaschi Patrick Chapon Dalibor Matýsek Kornel Pietrzak Monika Szymańska Łukasz Dudek |
| author_facet | Krzysztof Rokosz Tadeusz Hryniewicz Steinar Raaen Sofia Gaiaschi Patrick Chapon Dalibor Matýsek Kornel Pietrzak Monika Szymańska Łukasz Dudek |
| author_sort | Krzysztof Rokosz |
| collection | DOAJ |
| description | Coatings enriched with zinc and copper as well as calcium or magnesium, fabricated on titanium substrate by Plasma Electrolytic Oxidation (PEO) under AC conditions (two cathodic voltages, i.e., −35 or −135 V, and anodic voltage of +400 V), were investigated. In all experiments, the electrolytes were based on concentrated orthophosphoric acid (85 wt%) and zinc, copper, calcium and/or magnesium nitrates. It was found that the introduced calcium and magnesium were in the ranges 5.0–5.4 at% and 5.6–6.5 at%, respectively, while the zinc and copper amounts were in the range of 0.3–0.6 at%. Additionally, it was noted that the metals of the block S (Ca and Mg) could be incorporated into the structure about 13 times more than metals of the transition group (Zn and Cu). The incorporated metals (from the electrolyte) into the top-layer of PEO phosphate coatings were on their first (Cu<sup>+</sup>) or second (Cu<sup>2+</sup>, Ca<sup>2+</sup> and Mg<sup>2+</sup>) oxidation states. The crystalline phases (TiO and Ti<sub>3</sub>O) were detected only in coatings fabricated at cathodic voltage of −135 V. It has also been pointed that fabricated porous calcium–phosphate coatings enriched with biocompatible magnesium as well as with antibacterial zinc and copper are dedicated mainly to medical applications. However, their use for other applications (e.g., catalysis and photocatalysis) after additional functionalizations is not excluded. |
| first_indexed | 2024-03-10T16:41:57Z |
| format | Article |
| id | doaj.art-634c3811abee478c904d801450677d30 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T16:41:57Z |
| publishDate | 2020-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-634c3811abee478c904d801450677d302023-11-20T11:58:46ZengMDPI AGMaterials1996-19442020-08-011317383810.3390/ma13173838Metal Ions Supported Porous Coatings by Using AC Plasma Electrolytic Oxidation ProcessingKrzysztof Rokosz0Tadeusz Hryniewicz1Steinar Raaen2Sofia Gaiaschi3Patrick Chapon4Dalibor Matýsek5Kornel Pietrzak6Monika Szymańska7Łukasz Dudek8Faculty of Mechanical Engineering, Koszalin University of Technology, Racławicka 15–17, PL 75-620 Koszalin, PolandFaculty of Mechanical Engineering, Koszalin University of Technology, Racławicka 15–17, PL 75-620 Koszalin, PolandDepartment of Physics, Norwegian University of Science and Technology (NTNU), Realfagbygget E3-124 Høgskoleringen 5, NO 7491 Trondheim, NorwayHORIBA FRANCE S.A.S., Boulevard Th Gobert-Passage Jobin Yvon, CS 45002-91120 Palaiseau, FranceHORIBA FRANCE S.A.S., Boulevard Th Gobert-Passage Jobin Yvon, CS 45002-91120 Palaiseau, FranceInstitute of Geological Engineering, Faculty of Mining and Geology, VŠB—Technical University of Ostrava, 708-33 Ostrava, Czech RepublicFaculty of Mechanical Engineering, Koszalin University of Technology, Racławicka 15–17, PL 75-620 Koszalin, PolandFaculty of Mechanical Engineering, Koszalin University of Technology, Racławicka 15–17, PL 75-620 Koszalin, PolandFaculty of Mechanical Engineering, Koszalin University of Technology, Racławicka 15–17, PL 75-620 Koszalin, PolandCoatings enriched with zinc and copper as well as calcium or magnesium, fabricated on titanium substrate by Plasma Electrolytic Oxidation (PEO) under AC conditions (two cathodic voltages, i.e., −35 or −135 V, and anodic voltage of +400 V), were investigated. In all experiments, the electrolytes were based on concentrated orthophosphoric acid (85 wt%) and zinc, copper, calcium and/or magnesium nitrates. It was found that the introduced calcium and magnesium were in the ranges 5.0–5.4 at% and 5.6–6.5 at%, respectively, while the zinc and copper amounts were in the range of 0.3–0.6 at%. Additionally, it was noted that the metals of the block S (Ca and Mg) could be incorporated into the structure about 13 times more than metals of the transition group (Zn and Cu). The incorporated metals (from the electrolyte) into the top-layer of PEO phosphate coatings were on their first (Cu<sup>+</sup>) or second (Cu<sup>2+</sup>, Ca<sup>2+</sup> and Mg<sup>2+</sup>) oxidation states. The crystalline phases (TiO and Ti<sub>3</sub>O) were detected only in coatings fabricated at cathodic voltage of −135 V. It has also been pointed that fabricated porous calcium–phosphate coatings enriched with biocompatible magnesium as well as with antibacterial zinc and copper are dedicated mainly to medical applications. However, their use for other applications (e.g., catalysis and photocatalysis) after additional functionalizations is not excluded.https://www.mdpi.com/1996-1944/13/17/3838plasma electrolytic oxidation (PEO)micro arc oxidation (MAO)titaniumcalciummagnesiumzinc |
| spellingShingle | Krzysztof Rokosz Tadeusz Hryniewicz Steinar Raaen Sofia Gaiaschi Patrick Chapon Dalibor Matýsek Kornel Pietrzak Monika Szymańska Łukasz Dudek Metal Ions Supported Porous Coatings by Using AC Plasma Electrolytic Oxidation Processing Materials plasma electrolytic oxidation (PEO) micro arc oxidation (MAO) titanium calcium magnesium zinc |
| title | Metal Ions Supported Porous Coatings by Using AC Plasma Electrolytic Oxidation Processing |
| title_full | Metal Ions Supported Porous Coatings by Using AC Plasma Electrolytic Oxidation Processing |
| title_fullStr | Metal Ions Supported Porous Coatings by Using AC Plasma Electrolytic Oxidation Processing |
| title_full_unstemmed | Metal Ions Supported Porous Coatings by Using AC Plasma Electrolytic Oxidation Processing |
| title_short | Metal Ions Supported Porous Coatings by Using AC Plasma Electrolytic Oxidation Processing |
| title_sort | metal ions supported porous coatings by using ac plasma electrolytic oxidation processing |
| topic | plasma electrolytic oxidation (PEO) micro arc oxidation (MAO) titanium calcium magnesium zinc |
| url | https://www.mdpi.com/1996-1944/13/17/3838 |
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