Influence of Applied Voltage on Surface Morphology and Wettability of Biological Coatings on Ti6-Al-4V by Micro-Arc Oxidation Treatment
| Title: | Influence of Applied Voltage on Surface Morphology and Wettability of Biological Coatings on Ti6-Al-4V by Micro-Arc Oxidation Treatment |
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| Authors: | Yajie Chu, Peng Liu, Yixin Chen, Xiaoquan Li |
| Source: | Materials Research, Vol 23, Iss 1 (2020) |
| Publisher Information: | Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol), 2020. |
| Publication Year: | 2020 |
| Collection: | LCC:Materials of engineering and construction. Mechanics of materials |
| Subject Terms: | Microarc oxidation, oxide film morphology, roughness, wettability, biomedical applications, Materials of engineering and construction. Mechanics of materials, TA401-492 |
| More Details: | Abstract Micro-arc oxidation (MAO) treatment with various voltages was carried out on Ti alloys in 10% H2SO4 aqueous solution to enhance surface wettability for biological application. The effects of applied voltage on the surface morphology, phase constituents, functional group, roughness and wettability of the MAO coatings were investigated comprehensively. Increasing applied voltages significantly change phase constituents, surface morphology and wettability of the MAO coatings. Higher applied voltages are favorable to form higher fraction of rutile phase, larger micro-pores and higher surface roughness. The apparent contact angle decreases slightly after treated at 80 V but it decreases sharply after treated at 160 V or 200 V. The significant change in wettability of MAO coatings is attributed to hydroxyl group content and morphology of the MAO coatings. Differences in hydroxyl group content and surface morphology result in different contact interface types between water and MAO coatings, which is attributed to air captured or no air captured interface models. |
| Document Type: | article |
| File Description: | electronic resource |
| Language: | English |
| ISSN: | 1516-1439 1980-5373 |
| Relation: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392020000100223&tlng=en; http://www.scielo.br/pdf/mr/v23n1/1516-1439-mr-23-1-e20200002.pdf; https://doaj.org/toc/1516-1439 |
| DOI: | 10.1590/1980-5373-mr-2020-0002 |
| Access URL: | https://doaj.org/article/f8e3446285dc4a4ea7db023ce75857eb |
| Accession Number: | edsdoj.f8e3446285dc4a4ea7db023ce75857eb |
| Database: | Directory of Open Access Journals |
| ISSN: | 15161439 19805373 |
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| DOI: | 10.1590/1980-5373-mr-2020-0002 |
| Published in: | Materials Research |
| Language: | English |