Porous Biocoatings Based on Diatomite with Incorporated ZrO<sub>2</sub> Particles for Biodegradable Magnesium Implants
In the present work, the surface of a biodegradable Mg alloy was modified to create porous diatomite biocoatings using the method of micro-arc oxidation. The coatings were applied at process voltages in the range of 350–500 V. We have studied the influence of the addition of ZrO<sub>2</sub&...
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| Format: | Article |
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MDPI AG
2023-04-01
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| Series: | Journal of Functional Biomaterials |
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| Online Access: | https://www.mdpi.com/2079-4983/14/5/241 |
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| author | Mariya B. Sedelnikova Alexander D. Kashin Pavel V. Uvarkin Alexey I. Tolmachev Yurii P. Sharkeev Anna V. Ugodchikova Nikita A. Luginin Olga V. Bakina |
| author_facet | Mariya B. Sedelnikova Alexander D. Kashin Pavel V. Uvarkin Alexey I. Tolmachev Yurii P. Sharkeev Anna V. Ugodchikova Nikita A. Luginin Olga V. Bakina |
| author_sort | Mariya B. Sedelnikova |
| collection | DOAJ |
| description | In the present work, the surface of a biodegradable Mg alloy was modified to create porous diatomite biocoatings using the method of micro-arc oxidation. The coatings were applied at process voltages in the range of 350–500 V. We have studied the influence of the addition of ZrO<sub>2</sub> microparticles on the structure and properties of diatomite-based protective coatings for Mg implants. The structure and properties of the resulting coatings were examined using a number of research methods. It was found that the coatings have a porous structure and contain ZrO<sub>2</sub> particles. The coatings were mostly characterized by pores less than 1 μm in size. However, as the voltage of the MAO process increases, the number of larger pores (5–10 μm in size) also increases. However, the porosity of the coatings varied insignificantly and amounted to 5 ± 1%. It has been revealed that the incorporation of ZrO<sub>2</sub> particles substantially affects the properties of diatomite-based coatings. The adhesive strength of the coatings has increased by approximately 30%, and the corrosion resistance has increased by two orders of magnitude compared to the coatings without zirconia particles. |
| first_indexed | 2024-03-11T03:36:42Z |
| format | Article |
| id | doaj.art-a98f6eb4766e4c0b98809716e03770ee |
| institution | Directory Open Access Journal |
| issn | 2079-4983 |
| language | English |
| last_indexed | 2024-03-11T03:36:42Z |
| publishDate | 2023-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Functional Biomaterials |
| spelling | doaj.art-a98f6eb4766e4c0b98809716e03770ee2023-11-18T01:56:33ZengMDPI AGJournal of Functional Biomaterials2079-49832023-04-0114524110.3390/jfb14050241Porous Biocoatings Based on Diatomite with Incorporated ZrO<sub>2</sub> Particles for Biodegradable Magnesium ImplantsMariya B. Sedelnikova0Alexander D. Kashin1Pavel V. Uvarkin2Alexey I. Tolmachev3Yurii P. Sharkeev4Anna V. Ugodchikova5Nikita A. Luginin6Olga V. Bakina7Laboratory of Physics of Nanostructured Biocomposites, Institute of Strength Physics and Materials Science of SB RAS, Tomsk 634055, RussiaLaboratory of Physics of Nanostructured Biocomposites, Institute of Strength Physics and Materials Science of SB RAS, Tomsk 634055, RussiaLaboratory of Physics of Nanostructured Biocomposites, Institute of Strength Physics and Materials Science of SB RAS, Tomsk 634055, RussiaLaboratory of Physics of Nanostructured Biocomposites, Institute of Strength Physics and Materials Science of SB RAS, Tomsk 634055, RussiaLaboratory of Physics of Nanostructured Biocomposites, Institute of Strength Physics and Materials Science of SB RAS, Tomsk 634055, RussiaLaboratory of Physics of Nanostructured Biocomposites, Institute of Strength Physics and Materials Science of SB RAS, Tomsk 634055, RussiaLaboratory of Physics of Nanostructured Biocomposites, Institute of Strength Physics and Materials Science of SB RAS, Tomsk 634055, RussiaLaboratory of Nanobioengineering, Institute of Strength Physics and Materials Science of SB RAS, Tomsk 634055, RussiaIn the present work, the surface of a biodegradable Mg alloy was modified to create porous diatomite biocoatings using the method of micro-arc oxidation. The coatings were applied at process voltages in the range of 350–500 V. We have studied the influence of the addition of ZrO<sub>2</sub> microparticles on the structure and properties of diatomite-based protective coatings for Mg implants. The structure and properties of the resulting coatings were examined using a number of research methods. It was found that the coatings have a porous structure and contain ZrO<sub>2</sub> particles. The coatings were mostly characterized by pores less than 1 μm in size. However, as the voltage of the MAO process increases, the number of larger pores (5–10 μm in size) also increases. However, the porosity of the coatings varied insignificantly and amounted to 5 ± 1%. It has been revealed that the incorporation of ZrO<sub>2</sub> particles substantially affects the properties of diatomite-based coatings. The adhesive strength of the coatings has increased by approximately 30%, and the corrosion resistance has increased by two orders of magnitude compared to the coatings without zirconia particles.https://www.mdpi.com/2079-4983/14/5/241magnesium implantsmicro-arc coatingdiatomiteZrO<sub>2</sub> particlescorrosion resistance |
| spellingShingle | Mariya B. Sedelnikova Alexander D. Kashin Pavel V. Uvarkin Alexey I. Tolmachev Yurii P. Sharkeev Anna V. Ugodchikova Nikita A. Luginin Olga V. Bakina Porous Biocoatings Based on Diatomite with Incorporated ZrO<sub>2</sub> Particles for Biodegradable Magnesium Implants Journal of Functional Biomaterials magnesium implants micro-arc coating diatomite ZrO<sub>2</sub> particles corrosion resistance |
| title | Porous Biocoatings Based on Diatomite with Incorporated ZrO<sub>2</sub> Particles for Biodegradable Magnesium Implants |
| title_full | Porous Biocoatings Based on Diatomite with Incorporated ZrO<sub>2</sub> Particles for Biodegradable Magnesium Implants |
| title_fullStr | Porous Biocoatings Based on Diatomite with Incorporated ZrO<sub>2</sub> Particles for Biodegradable Magnesium Implants |
| title_full_unstemmed | Porous Biocoatings Based on Diatomite with Incorporated ZrO<sub>2</sub> Particles for Biodegradable Magnesium Implants |
| title_short | Porous Biocoatings Based on Diatomite with Incorporated ZrO<sub>2</sub> Particles for Biodegradable Magnesium Implants |
| title_sort | porous biocoatings based on diatomite with incorporated zro sub 2 sub particles for biodegradable magnesium implants |
| topic | magnesium implants micro-arc coating diatomite ZrO<sub>2</sub> particles corrosion resistance |
| url | https://www.mdpi.com/2079-4983/14/5/241 |
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