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10. Preparation of alumina powder by phenol solvent

Author

Sato Hisanobu and Seri Osami

Subjects
inorganic chemicals, Materials science, Mechanical Engineering, Inorganic chemistry, technology, industry, and agriculture, Metals and Alloys, chemistry.chemical_element, complex mixtures, Chloride, Corrosion, Catalysis, Solvent, chemistry.chemical_compound, chemistry, Mechanics of Materials, Aluminium, Reagent, Materials Chemistry, medicine, Phenol, Dissolution, Nuclear chemistry, medicine.drug
Abstract

Aluminum has been dissolved by corrosion approach making use of phenol as a solvent and aluminum chloride as a catalyst for a period of 2.1 ks refluxing process. White aluminum oxide powder was successfully obtained when the solution has been hydrated and dried in electric oven. The powder derived from our approach above was evaluated in comparison with aluminumphenoxide reagent. When the powder was sintered at 1473 K for 3.6 ks, the apparent α-alumina was confirmed by XRD analysis, which showed completely same XRD patterns of the aluminumphennoxide reagent. It was found that the shape of our α-alumina powder was a few micron meter size hexagonal scales. From electrochemical point of view, the dissolution of aluminum in phenol was explained as the corrosion phenomena of aluminum.

Published
2010

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