Effects of the Addition of Calcium Acetate into Silicate-Based Electrolytes on the Properties of MAO Coatings Produced on Zirconium

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

Abstracts

EN

Zirconium (Zr) is a potential implant material due to its excellent biocompatibility and low elastic modulus for biomedical applications. Its poor bioactivity, however, limits its use as biomaterials. In this study, microarc oxidation which is a plasma-electrochemical based process was applied to produce oxide coatings on pure zirconium. The coating processes were conducted in different electrolytes containing sodium silicate and varying amounts of calcium acetate tetrahydrate (CA) for 30 min to investigate the effect of the introduction of CA into the electrolyte solution on the morphology and chemical composition of the fabricated coatings. It was found that the coatings consisted of monoclinic-ZrO₂ and tetragonal-ZrO₂ phases. The amount of the tetragonal-ZrO₂ phase increased with the increasing CA concentration in the electrolyte. The coating thickness and surface roughness showed a tendency to increase with the increasing CA concentration in the electrolyte. It was observed that the vicinity of plasma channels were Zr-rich, while their surroundings were rich in Si and Ca elements. The outer region of the coating was denser compared to inner region consisting of Zr-rich porous structure.

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: 2016
• Volume: 129
• Issue: 4
• Pages: 504-508

Dates

published

2016-04

Contributors

author

S. Cengiz

• Gebze Technical University, Department of Materials Science and Engineering, 41400 Gebze, Kocaeli, Turkey

author

Y. Azakli

• Gebze Technical University, Department of Materials Science and Engineering, 41400 Gebze, Kocaeli, Turkey

author

M. Yazici

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

author

B. Gayretli

• Gebze Technical University, Department of Materials Science and Engineering, 41400 Gebze, Kocaeli, Turkey

author

Y. Gencer

• Gebze Technical University, Department of Materials Science and Engineering, 41400 Gebze, Kocaeli, Turkey

author

M. Tarakci

• Gebze Technical University, Department of Materials Science and Engineering, 41400 Gebze, Kocaeli, Turkey

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Identifiers

DOI

10.12693/APhysPolA.129.504