Surface Modification of Diatomite-Based Micro-Arc Coatings for Magnesium Implants Using a Low-Energy High-Current Electron Beam Processing Technique
The present study showcases a novel effective technique for the surface modification of micro-arc diatomite coatings using low-energy, high-current electron beams (LEHCEBs). A variety of methods such as scanning electron microscopy, energy-dispersive X-ray spectroscopy, the X-ray diffraction method,...
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| Format: | Article |
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MDPI AG
2024-02-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/14/2/248 |
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| author | Mariya B. Sedelnikova Alexander D. Kashin Olga V. Bakina Pavel V. Uvarkin Nikita A. Luginin Yurii P. Sharkeev Margarita A. Khimich Olga V. Kazmina Edgar S. Dvilis Konstantin V. Ivanov |
| author_facet | Mariya B. Sedelnikova Alexander D. Kashin Olga V. Bakina Pavel V. Uvarkin Nikita A. Luginin Yurii P. Sharkeev Margarita A. Khimich Olga V. Kazmina Edgar S. Dvilis Konstantin V. Ivanov |
| author_sort | Mariya B. Sedelnikova |
| collection | DOAJ |
| description | The present study showcases a novel effective technique for the surface modification of micro-arc diatomite coatings using low-energy, high-current electron beams (LEHCEBs). A variety of methods such as scanning electron microscopy, energy-dispersive X-ray spectroscopy, the X-ray diffraction method, scratch testing, the potentiodynamic polarization method, immersion testing in SBF, and flow cytometry have been used to study the coatings. During processing, the electron beams’ energy density ranged between 2.5–7.5 J/cm<sup>2</sup>. After the LEHCEB treatment, the surface morphology of the coatings changed completely. The corrosion resistance of the LEHCEB-treated coated samples increased significantly, as evidenced by the decrease in corrosion current to 4.6 × 10<sup>−10</sup> A·cm<sup>−2</sup> and the increase in polarization resistance to 1.4 × 10<sup>8</sup> Ω·cm<sup>2</sup>. The electron beam treatment also increased the adhesion strength of the coatings to the magnesium substrate by 1.8–2.5 times compared to untreated coatings. Additionally, biological studies have shown the high viability of the NIH/3T3 cell line after contact with the samples of the coating extracts. |
| first_indexed | 2024-03-07T22:21:12Z |
| format | Article |
| id | doaj.art-b4654aecd1804046a69fdb3fcaf1f37a |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-07T22:21:12Z |
| publishDate | 2024-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-b4654aecd1804046a69fdb3fcaf1f37a2024-02-23T15:27:28ZengMDPI AGMetals2075-47012024-02-0114224810.3390/met14020248Surface Modification of Diatomite-Based Micro-Arc Coatings for Magnesium Implants Using a Low-Energy High-Current Electron Beam Processing TechniqueMariya B. Sedelnikova0Alexander D. Kashin1Olga V. Bakina2Pavel V. Uvarkin3Nikita A. Luginin4Yurii P. Sharkeev5Margarita A. Khimich6Olga V. Kazmina7Edgar S. Dvilis8Konstantin V. Ivanov9Laboratory 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, 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, RussiaResearch School of Advanced Manufacturing Technologies, Kizhner Research Center, National Research Tomsk Polytechnic University, Lenin Prospect 30, Tomsk 634050, RussiaResearch School of Advanced Manufacturing Technologies, Innovation Center for Nanomaterials and Nanotechnologies, National Research Tomsk Polytechnic University, Lenin Prospect 30, Tomsk 634050, RussiaLaboratory of Physics of Consolidated Powder Materials, Institute of Strength Physics and Materials Science of SB RAS, Tomsk 634055, RussiaThe present study showcases a novel effective technique for the surface modification of micro-arc diatomite coatings using low-energy, high-current electron beams (LEHCEBs). A variety of methods such as scanning electron microscopy, energy-dispersive X-ray spectroscopy, the X-ray diffraction method, scratch testing, the potentiodynamic polarization method, immersion testing in SBF, and flow cytometry have been used to study the coatings. During processing, the electron beams’ energy density ranged between 2.5–7.5 J/cm<sup>2</sup>. After the LEHCEB treatment, the surface morphology of the coatings changed completely. The corrosion resistance of the LEHCEB-treated coated samples increased significantly, as evidenced by the decrease in corrosion current to 4.6 × 10<sup>−10</sup> A·cm<sup>−2</sup> and the increase in polarization resistance to 1.4 × 10<sup>8</sup> Ω·cm<sup>2</sup>. The electron beam treatment also increased the adhesion strength of the coatings to the magnesium substrate by 1.8–2.5 times compared to untreated coatings. Additionally, biological studies have shown the high viability of the NIH/3T3 cell line after contact with the samples of the coating extracts.https://www.mdpi.com/2075-4701/14/2/248diatomitemagnesium alloybioresorbable implantsmicro-arc oxidationlow-energy high-current electron beam |
| spellingShingle | Mariya B. Sedelnikova Alexander D. Kashin Olga V. Bakina Pavel V. Uvarkin Nikita A. Luginin Yurii P. Sharkeev Margarita A. Khimich Olga V. Kazmina Edgar S. Dvilis Konstantin V. Ivanov Surface Modification of Diatomite-Based Micro-Arc Coatings for Magnesium Implants Using a Low-Energy High-Current Electron Beam Processing Technique Metals diatomite magnesium alloy bioresorbable implants micro-arc oxidation low-energy high-current electron beam |
| title | Surface Modification of Diatomite-Based Micro-Arc Coatings for Magnesium Implants Using a Low-Energy High-Current Electron Beam Processing Technique |
| title_full | Surface Modification of Diatomite-Based Micro-Arc Coatings for Magnesium Implants Using a Low-Energy High-Current Electron Beam Processing Technique |
| title_fullStr | Surface Modification of Diatomite-Based Micro-Arc Coatings for Magnesium Implants Using a Low-Energy High-Current Electron Beam Processing Technique |
| title_full_unstemmed | Surface Modification of Diatomite-Based Micro-Arc Coatings for Magnesium Implants Using a Low-Energy High-Current Electron Beam Processing Technique |
| title_short | Surface Modification of Diatomite-Based Micro-Arc Coatings for Magnesium Implants Using a Low-Energy High-Current Electron Beam Processing Technique |
| title_sort | surface modification of diatomite based micro arc coatings for magnesium implants using a low energy high current electron beam processing technique |
| topic | diatomite magnesium alloy bioresorbable implants micro-arc oxidation low-energy high-current electron beam |
| url | https://www.mdpi.com/2075-4701/14/2/248 |
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