Characterization of Coating Formed on Pure Zirconium by MAO in Yttrium Acetate Tetrahydrate Containing Electrolyte

• Authors: S. Cengiz , M. Yazici , Y. Gencer , M. Tarakci
• Languages of publication: EN

Abstracts

EN

In this study, oxide coatings were produced on pure zirconium by micro arc oxidation method in the electrolytes containing sodium silicate and different amounts of yttrium acetate tetrahydrate (1-4 g/l) for the same coating duration of 1 h. The surface roughness, microstructure, phase content and chemical composition of the coatings were characterized by using scanning electron microscopy, profilometry and X-Ray diffractometry. It was found that the surfaces of coatings on zirconium consist of monoclinic-ZrO₂, tetragonal-ZrO₂ phases. The coating thickness decreases with addition of yttrium acetate tetrahydrate while it does not change significantly with the increase of its amount. The clustered equiaxed features were formed on the surfaces of the coatings. As the amount of yttrium acetate tetrahydrate in the electrolyte solution increased, the coating/substrate interface smoothened. Two main regions of the coating, the outer dense region (I) and the porous inner region (II), became significant with addition of YAT into the electrolyte.

Keywords

EN

81.15.-z; 81.05.Bx

Discipline

• 81.05.Bx: Metals, semimetals, and alloys
• 81.15.-z: Methods of deposition of films and coatings; film growth and epitaxy(for structure of thin films, see 68.55.-a; see also 85.40.Sz Deposition technology in microelectronics; for epitaxial dielectric films, see 77.55.Px)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2015
• Volume: 127
• Issue: 4
• Pages: 1320-1325

Dates

published

2015-04

Contributors

author

S. Cengiz

• Gebze Institute of Technology, Department of Materials Science and Engineering, 41400 Gebze, Kocaeli, Turkey

author

M. Yazici

• Gebze Institute of Technology, Department of Materials Science and Engineering, 41400 Gebze, Kocaeli, Turkey
• Ondokuz Mayis University, Department of Materials Science and Engineering, 55139 Kurupelit, Samsun, Turkey

author

Y. Gencer

• Gebze Institute of Technology, Department of Materials Science and Engineering, 41400 Gebze, Kocaeli, Turkey

author

M. Tarakci

• Gebze Institute of Technology, Department of Materials Science and Engineering, 41400 Gebze, Kocaeli, Turkey

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Identifiers

DOI

10.12693/APhysPolA.127.1320