Morphologies of anodic oxide films deduced from dissolution studies |
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Authors: | M M Hefny |
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Affiliation: | (1) Department of Chemistry, Faculty of Science, U.A.E. University, P.O. Box 17771, Al-Ain, United Arab Emirates |
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Abstract: | Study of the chemical stripping of anodic oxide films on hafnium, zirconium, tungsten and aluminium has led to the deduction of the morphology of the respective oxides. Away from the boundary region hafnium oxide is a compact, smooth, homogenous and crystalline oxide. Zirconium oxide has a superficial disorder layer which constitutes about 17% of the entire film. Tungsten oxide deposits are composed of two defective partial layers the outer one being more disordered. Aluminium oxide is a porous film. A schematic representation of each film had been presented. |
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