| Autor: |
Meysam Karimi, Mohammad Jafari Eskandari, Masoud Araghchi |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
|
| Zdroj: |
Results in Surfaces and Interfaces, Vol 14, Iss , Pp 100205- (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2666-8459 |
| DOI: |
10.1016/j.rsurfi.2024.100205 |
| Popis: |
In this investigation, a graphene oxide (GO)/zirconium dioxide (ZrO2) composite coating was fabricated on Zr–1%Nb alloy by plasma electrolytic oxidation (PEO) process to improve the wear behavior and reduce friction performance of the Zr alloy. The GO-containing composite coating was mainly composed of the monoclinic (m-ZrO2) and tetragonal (t-ZrO2) phases and had a higher intensity of surface reactions, density, and thickness than the GO-free coating. Furthermore, the GO-containing coating exhibited lower icorr and more positive Ecorr than the GO-free coating. The optimal amount of GO sheets for improving the composite coating properties was found to be 2 wt%; use of more than 2 wt% of the GO sheets, however reduced the coating properties due to the increase in the conductivity of the electrolyte, the creation of stronger micro-discharges on the surface of the coating, and their aggregation. Additionally, the GO sheets improved the hydrophobicity of the PEO coating. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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