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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Bordo, Kirill
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (17/17 displayed)
- 2018Electrochemical profiling of multi-clad aluminium sheets used in automotive heat exchangerscitations
- 2018Electrochemical profiling of multi-clad aluminium sheets used in automotive heat exchangerscitations
- 2017Steam based conversion coating on AA6060 alloy: Effect of sodium silicate chemistry and corrosion performancecitations
- 2016Band gap tuning of amorphous Al oxides by Zr alloyingcitations
- 2016High frequency pulse anodising of magnetron sputtered Al–Zr and Al–Ti Coatingscitations
- 2015Accelerated growth of oxide film on aluminium alloys under steam: Part II: Effects of alloy chemistry and steam vapour pressure on corrosion and adhesion performancecitations
- 2015Effect of High Frequency Pulsing on the Interfacial Structure of Anodised Aluminium-TiO2citations
- 2015High Frequency Anodising of Aluminium-TiO2 Surface Compositescitations
- 2015Friction stir processed Al-TiO 2 surface composites:DC vs. High frequency pulse and pulse reverse anodising
- 2015High frequency anodising of aluminium–TiO2 surface composites: Anodising behaviour and optical appearancecitations
- 2015Effect of High Frequency Pulsing on the Interfacial Structure of Anodized Aluminium-TiO2citations
- 2015High frequency anodising of aluminium-TiO 2 surface composites:Anodising behaviour and optical appearancecitations
- 2015Effect of High Frequency Pulsing on the Interfacial Structure of Anodised Aluminium-TiO 2citations
- 2014Optical appearance of AC anodized Al/TiO 2 composite coatings
- 2014Microstructure and optical appearance of anodized friction stir processed Al - Metal oxide surface composites
- 2014Electrochemical profiling of multi-clad aluminium sheets used in automotive heat exchangers
- 2014Optical appearance of AC anodized Al/TiO2 composite coatings
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article
Effect of High Frequency Pulsing on the Interfacial Structure of Anodised Aluminium-TiO2
Abstract
High frequency anodizing of friction stir processed Al-TiO<sub>2 </sub>surface composites was investigated. The effect of anodizing parameters on the structure and morphology of the anodic layer including the incorporation of the TiO<sub>2</sub> particles into the anodic layer is studied. Anodizing process was carried out using a high frequency pulse and pulse reverse pulse technique at a fixed frequency in a sulfuric acid bath. The structure of the composites and the anodized layer was studied using scanning and transmission electron microscopy. The pulse reverse pulse anodizing technique, using a negative potential on the low voltage cycle, showed extensive pore branching and pore generation at the TiO<sub>2</sub> particle-anodic alumina matrix interface. However, the pulse anodizing technique using zero potential during the low voltage cycle showed no such features in the pore morphology, but only entrapment of TiO<sub>2</sub> particles into the anodic alumina. Lower electrical resistance of the TiO<sub>2</sub> arising from oxygen defects, combined with applied negative potential during the low voltage cycle, are found to be responsible for the observed morphological features in the anodic alumina.