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Template-free, microscale dimple patterning of pure titanium surface through anodic dissolution using non-aqueous ethylene glycol-TiCl4 electrolytes
journal contribution
posted on 2020-12-04, 16:28 authored by Jing Wang, Carmen TorresCarmen Torres, James Borgman, Lorenzo Zani, Paul ConwayPaul ConwayWe report a single-step anodic dissolution route for the template-free patterning of pure titanium (Ti) surfaces into a microscale, dimpled topography using non-aqueous ethylene glycol-TiCl4 electrolytes. Anodic dissolution of Ti metal (i.e. 0.04 M Ti4+) into a 40 EG: 1 TiCl4 electrolyte was found to induce a predominant change in the anodic dissolution reaction of Ti metal, converting its surface morphology from a slightly-pitted, bright finish into a dimple-patterned surface. The dimple pattern, ca. 4.5 µm in size and 1 µm in cusp height, was found self-organised with no apparent relation to underlying metal grain structure and independent of the applied potential within the anodic current plateau. The origin of the dimple patterning is surmised to arise from a dynamic self-organisation of the double layer, templated via tracery anodic reaction products – Ti-glycolate-derived, stacked-nanolayers (SNLs).
Funding
Embedded Integrated Intelligent Systems for Manufacturing
Engineering and Physical Sciences Research Council
Find out more...History
School
- Mechanical, Electrical and Manufacturing Engineering
Published in
Surface and Coatings TechnologyVolume
404Publisher
ElsevierVersion
- VoR (Version of Record)
Rights holder
© The AuthorsPublisher statement
This is an Open Access Article. It is published by Elsevier under the Creative Commons Attribution 4.0 International Licence (CC BY 4.0). Full details of this licence are available at: https://creativecommons.org/licenses/by/4.0/Acceptance date
2020-10-22Publication date
2020-10-27Copyright date
2020ISSN
0257-8972Publisher version
Language
- en