Formation of Ti-Si composite oxide films on Mg-Al-Zn alloy by electrophoretic deposition and anodization
Creators
- 1. Kyushu Nogeden Co., Ltd., Process Engineering Group, 1188 Yonezuka, Ueki-cho, Kamoto-gun, Kumamoto 861-0115 (Japan)
- 2. Graduate School of Science and Technology, Kumamoto University, 2-39-1 Kurokami, Kumamoto-shi, Kumamoto 860-8555 (Japan)
Description
TiO2 or SiO2 nanoparticles dispersed in an acetone solvent containing iodine were deposited on Mg-Al-Zn alloy by electrophoretic deposition (EPD). Subsequently, the composite oxide films were formed on the substrate by anodization in KOH-Na2SiO3 aqueous solutions containing TiO2 or SiO2 nanoparticles. The films formed by EPD were improved binding with the substrate by anodization under high voltages with sparking, and then the anodic films consisted of Si-Mg or Ti-Si-Mg composite oxides. The film thicknesses of TiO2 and SiO2 on the alloy increased with anodization time. In polarization tests, the films anodized under high voltages with sparking in the alkaline solutions had high corrosion resistance. Thus, the composite oxide films formed in the present method were successful in providing corrosion resistance to Mg alloy
Additional details
Identifiers
- DOI
- 10.1016/j.electacta.2005.03.010;
- PII
- S0013-4686(05)00235-5;
Publishing Information
- Journal Title
- Electrochimica Acta
- Journal Volume
- 50
- Journal Issue
- 27
- Journal Page Range
- p. 5329-5333
- ISSN
- 0013-4686
- CODEN
- ELCAAV
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 38016116
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- ALUMINIUM ALLOYS; ANODIZATION; AQUEOUS SOLUTIONS; CORROSION RESISTANCE; ELECTRODEPOSITION; FILMS; MAGNESIUM ALLOYS; NANOSTRUCTURES; POLARIZATION; POTASSIUM HYDROXIDES; SILICON OXIDES; TITANIUM OXIDES; ZINC ALLOYS
- Descriptors DEC
- ALKALI METAL COMPOUNDS; ALLOYS; CHALCOGENIDES; CHEMICAL COATING; CORROSION PROTECTION; DEPOSITION; DISPERSIONS; ELECTROCHEMICAL COATING; ELECTROLYSIS; HOMOGENEOUS MIXTURES; HYDROGEN COMPOUNDS; HYDROXIDES; LYSIS; MIXTURES; OXIDES; OXYGEN COMPOUNDS; POTASSIUM COMPOUNDS; SILICON COMPOUNDS; SOLUTIONS; SURFACE COATING; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS
Optional Information
- Copyright
- Copyright (c) 2005 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.