Time and temperature reduction of the sealing process of porous aluminium oxide films with organic additives
Keywords:Anodizing, New sealing methods, Sealing times reduction, Lowering sealing tempertures
Different sealing processes of anode coatings in aluminium oxide have been industrially used for more than 30 years. In two of the preceeding decades a great effort was realized to reduce costs in the traditional hydrothermal sealing process in deionized boiling water (SHT), a very expensive process due to its endurance and high temperature on which it develops. New sealing procedures are proposed, on which by means of the use of organic additives, the time or the temperature of the SHT is essentially reduced.
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