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Anodising Process

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Mohd Nazree Derman – One of the best experts on this subject based on the ideXlab platform.

  • authorversionAMR.173.55.pdf
    , 2017
    Co-Authors: Mohd Nazree Derman

    Abstract:

    This paper is study on Anodising Process. The mixed solution of H3PO4+CH3COOH was used to create the AAO film withcontrolled morphology. This mixed solution as anodizing electrolytes can decrease the filmdissolution rate and then increase the film formation efficiency and improve the film properties.However, optimum parameter which need for this Process is very difficult to achieve because thebehaviours of the porous AAO film properties strictly influenced by anodizing Process parametersuch as anodizing voltage, electrolyte temperature, acid concentration and duration of anodizingProcess. The study approach on anodizing Process has been explored by using H3PO4+CH3COOHto obtain the nanostructured porous AAO film on aluminium substrate. Thus, a new hypothesis hasbeen generated to explore the relationship between anodizing parameters and substrate properties onnanostructured AAO film in microstructural and chemical properties in order to enlarge its usageespecially in electronic applications.

  • STUDY OF ANODISED PM ALUMINIUM MATRIX COMPOSITE REINFORCED WITH 15 wt % SAFFIL ¥ ALUMINA SHORT FIBRE
    , 2015
    Co-Authors: Mohd Nazree Derman, Zainal Arifin Ahmad, Luay Bakir Hussain, Mohd Sharif

    Abstract:

    A study of wear behaviour on anodised PM aluminium matrix composites (AMC) reinforced with Saffil ¥ alumina short fibres was done. AMC was fabricated by powder metallurgy methods (PM) with using Al flake powders and Saffil ¥ alumina short fibres. AMC reinforced with 15 wt % Saffil¥ alumina short fibre was selected because it showed optimum mechanical and physical properties. Sulphuric acid Anodising Process was performed and the objective is to obtain suitable parameters of sulphuric acid concentration, Anodising voltage and Anodising time on MMC. The study of Anodising Process was carried out with various sulphuric acid concentrations (from 0 to 20 % volume), Anodising voltage (10 V to 20 V) and Anodising time (from 0 to 60 minutes) at room temperature. Scanning electron microscope (SEM) was used to investigate coating morphology and thickness. From the research, Anodising voltage of 18 V and 15 % vol H2SO4 in Anodising time of 60 minutes were suitable parameters for sulphuric acid Anodising of this AMC. SEM showed the coating thickness around 20 Pm. From the reserch, it was found that H2SO4 Anodising was able to give good coating to MMC

  • The Effect of Electrolyte Temperature on Formation of Porous Aluminium Oxide Films in Anodising Process
    , 2013
    Co-Authors: Juyana A. Wahab, Mohd Nazree Derman, Zuraidawani Che Daud, Taman Pertiwi Indah

    Abstract:

    A porous aluminium oxide film formed on aluminium was prepared in a mixed electrolyte of phosphoric acid and acetic acid solution. The morphology, growth and thickness of the film were investigated. The Anodising Process was done by varying the Anodising temperature from 5 °C to 25 °C. The constant Anodising voltage was applied at 130 V and the Anodising was done in the mixture of H

M G S Ferreira – One of the best experts on this subject based on the ideXlab platform.

  • Anodising of al 2024 t3 in a modified sulphuric acid boric acid bath for aeronautical applications
    Corrosion Science, 2003
    Co-Authors: Luis Domingues, Joao Fernandes, M Da Cunha Belo, M G S Ferreira, L Guerrarosa

    Abstract:

    A novel borate/boric/sulphuric acid Anodising Process is studied. The results show that the physical structure of the films is influenced not only by the bath used, but also and mainly by the substrate, i.e., Al 2024-T3 or Al. The corrosion resistance of the anodised specimens is satisfactory for practical applications and the fatigue resistance is not significantly different from that obtained with the traditional chromic acid Anodising.

  • Anodising of Al 2024-T3 in a modified sulphuric acid/boric acid bath for aeronautical applications
    Corrosion Science, 2002
    Co-Authors: Luis Domingues, Joao Fernandes, M Da Cunha Belo, M G S Ferreira, L Guerra-rosa

    Abstract:

    A novel borate/boric/sulphuric acid Anodising Process is studied. The results show that the physical structure of the films is influenced not only by the bath used, but also and mainly by the substrate, i.e., Al 2024-T3 or Al. The corrosion resistance of the anodised specimens is satisfactory for practical applications and the fatigue resistance is not significantly different from that obtained with the traditional chromic acid Anodising.

L Guerrarosa – One of the best experts on this subject based on the ideXlab platform.

  • Anodising of al 2024 t3 in a modified sulphuric acid boric acid bath for aeronautical applications
    Corrosion Science, 2003
    Co-Authors: Luis Domingues, Joao Fernandes, M Da Cunha Belo, M G S Ferreira, L Guerrarosa

    Abstract:

    A novel borate/boric/sulphuric acid Anodising Process is studied. The results show that the physical structure of the films is influenced not only by the bath used, but also and mainly by the substrate, i.e., Al 2024-T3 or Al. The corrosion resistance of the anodised specimens is satisfactory for practical applications and the fatigue resistance is not significantly different from that obtained with the traditional chromic acid Anodising.