التفاصيل البيبلوغرافية
| العنوان: |
Hybrid coatings for orthopaedic implants formed by physical vapour deposition and microarc oxidation |
| المؤلفون: |
Roman Gabor, Ladislav Cvrček, Martina Doubková, Václav Nehasil, Josef Hlinka, Petr Unucka, Matěj Buřil, Adéla Podepřelová, Jana Seidlerová, Lucie Bačáková |
| المصدر: |
Materials & Design, Vol 219, Iss , Pp 110811- (2022) |
| بيانات النشر: |
Elsevier, 2022. |
| سنة النشر: |
2022 |
| المجموعة: |
LCC:Materials of engineering and construction. Mechanics of materials |
| مصطلحات موضوعية: |
Ti-6Al-4V, PVD coating, MAO process, Corrosion protection, Tribology, Mesenchymal stem cells, Materials of engineering and construction. Mechanics of materials, TA401-492 |
| الوصف: |
This study is focused on the preparation of new hybrid layers intended for surface modification of Ti-6Al-4V alloys for potential orthopaedic and dental applications. Combination of the technology of physical vapour deposition (PVD) and subsequent micro-arc oxidation (MAO) was utilized for the deposition of Ti and ZrTi to form hybrid oxide layers. The oxide layers were prepared using an alkaline electrolyte with glycerol as an additive under micro-arc discharge conditions with different Si content on their surfaces. The hybrid ZrTi coatings with a Zr/Si structure achieved the best tribological properties described by a low friction coefficient of 0.3 and high abrasion resistance. There was also an increase in corrosion potential and polarization resistance of hybrid ZrTi coatings. Although the proliferation of human bone marrow mesenchymal stem cells was slower on these hydrophilic Ti and ZrTi coatings than both on uncoated Ti-6Al-4V and the reference tissue culture polystyrene dishes, both types of hybrid coating promoted greater osteogenic differentiation of these cells, indicated by approx. twice as high activity of alkaline phosphatase. The hybrid oxide layers newly developed in this study – especially the layers with Zr – are therefore promising for coating metallic bone implants. |
| نوع الوثيقة: |
article |
| وصف الملف: |
electronic resource |
| اللغة: |
English |
| تدمد: |
0264-1275 |
| Relation: |
http://www.sciencedirect.com/science/article/pii/S0264127522004336; https://doaj.org/toc/0264-1275 |
| DOI: |
10.1016/j.matdes.2022.110811 |
| URL الوصول: |
https://doaj.org/article/004cae95c7d34a5cad9b126293589009 |
| رقم الانضمام: |
edsdoj.004cae95c7d34a5cad9b126293589009 |
| قاعدة البيانات: |
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