Crystallization of anodic aluminium oxide membranes
Nanoporous anodic aluminum oxide membranes (AAM) were fabricated in oxalic acid electrolytes using a two-step anodization process. Membranes' structure and morphology were examined using scanning electron microscopy and X-ray diffraction after the annealing treatment. It was found that the crystallization temperature of the AAM are greatly dependent on their thickness. Aluminum is maintained under the protection of AAM even at 1100°C when the AAM's melting manifests.
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