Fabrication and characterization of alumina fiber by anodic oxidation and chemical dissolution processes |
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| Affiliation: | 1. Laboratory of Functional Films, School of Materials Science and Engineering, Xi''an University of Technology, Xi''an, 710048, China;2. Science and Technology on Thermostructural Composite Materials Laboratory, Northwestern Polytechnical University, Xi''an, 710072, China;1. University of Belgrade, Faculty of Physics, Studentski trg 12-16, 11000 Belgrade, Serbia;2. University of Belgrade, Institute of Chemistry, Technology and Metallurgy, Department of Catalysis and Chemical Engineering, Njegoševa 12, 11000 Belgrade, Serbia;3. Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Block 11, 1113 Sofia, Bulgaria;1. National Centre for Nanotechnology & Department of Metallurgy and Materials Engineering, Pakistan Institute of Engineering and Applied Sciences (PIEAS), Islamabad, Pakistan;2. EMMG, Physics Division, PINSTECH, Islamabad, Pakistan;1. Université de Lorraine, Institut Jean Lamour, UMR CNRS 7198, NANCY, F-54042, France;2. CNRS, Institut Jean Lamour, UMR CNRS 7198, NANCY, F-54042, France;3. Elettra - Sincrotrone Trieste S.C.p.A. S.S. 14 km 163,5 in AREA Science Park, 34149 Basovizza, Trieste, Italy |
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| Abstract: | Alumina fiber was fabricated by an anodic oxidation process from pure aluminum or a chemical dissolution process from porous alumina. In the experiments, porous alumina layer was firstly formed on the surface of pure aluminum by anodic oxidation process in phosphoric acid electrolyte. The alumina fiber was obtained by either further anodic oxidation process or a chemical dissolution process from the porous alumina layer. The thickness of the porous alumina layer, the diameter and wall thickness of the pores in the porous alumina layer, and the length and diameter of the obtained alumina fiber were examined. The formation mechanism of the alumina fiber was discussed. |
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| Keywords: | Alumina fiber Anodic oxidation Chemical dissolution |
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