Micro-arc oxidization of a novel Mg–1Ca alloy in three alkaline KF electrolytes: Corrosion resistance and cytotoxicity
- 1. Center for Biomedical Materials and Tissue Engineering, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871 (China)
- 2. Department of Advanced Materials and Nanotechnology, College of Engineering, Peking University, Beijing 100871 (China)
- 3. Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Peking University, Beijing 100871 (China)
Description
A newly-developed Mg–1Ca (wt%) alloy was treated by micro-arc oxidization (MAO) in KF-silicate- (Si coating), KF-phosphate- (P coating) and KF-silicate-phosphate (SiP coating) electrolytes. The microstructure, composition and corrosion resistance of the resultant MAO coatings were investigated using scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), and X-ray diffractometry (XRD). Electrochemical analysis and immersion test in Hanks' solution and MTT assay for in-vitro toxicity against MG63 cells were subsequently carried out. Results showed that all the three MAO coatings contributed to the improvement of corrosion resistance and cytocompatibility of substrate; however, P coating outperformed the two others due to its specific microstructure and composition.
Availability note (English)
Available from http://dx.doi.org/10.1016/j.apsusc.2013.11.038Additional details
Identifiers
- DOI
- 10.1016/j.apsusc.2013.11.038;
- PII
- S0169-4332(13)02116-8;
Publishing Information
- Journal Title
- Applied Surface Science
- Journal Volume
- 292
- Journal Page Range
- p. 1030-1039
- ISSN
- 0169-4332
- CODEN
- ASUSEE
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 46005252
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- CALCIUM ALLOYS; CORROSION RESISTANCE; ELECTROCHEMISTRY; ELECTROLYTES; MAGNESIUM ALLOYS; MICROSTRUCTURE; NANOSTRUCTURES; OXIDATION; PHOSPHATES; POROUS MATERIALS; SCANNING ELECTRON MICROSCOPY; SILICATES; SUBSTRATES; SURFACE COATING; TOXICITY; X-RAY DIFFRACTION; X-RAY PHOTOELECTRON SPECTROSCOPY
- Descriptors DEC
- ALLOYS; CHEMICAL REACTIONS; CHEMISTRY; COHERENT SCATTERING; DEPOSITION; DIFFRACTION; ELECTRON MICROSCOPY; ELECTRON SPECTROSCOPY; MATERIALS; MICROSCOPY; OXYGEN COMPOUNDS; PHOSPHORUS COMPOUNDS; PHOTOELECTRON SPECTROSCOPY; SCATTERING; SILICON COMPOUNDS; SPECTROSCOPY
Optional Information
- Copyright
- Copyright (c) 2013 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.