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1 Materials Science Poland

1 2004

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Investigations of the surface morphology of Al2O3 layers by atomic force microscopy

Skoneczny W., Jurusik J., Burian A.

Materials Science Poland

2004

Vol. 22, No. 3

265--278

Amorphous alumina coating films, prepared on aluminium substrates by oxidation by the electrolytic method in ternary electrolytes, have been characterised by atomic force microscopy. The surface roughness and growth structure of the obtained Al2O3 films are related to the experimental conditions: temperature, current density, and deposition time. They are also related to the preparation method of the aluminium substrate surface. The columnar growth revealed by atomic force microscopy, with shape and size of columns depending on temperature and current density, has been confirmed by scanning electron microscopy.