Selected Properties of ZnO Coating on Mg-Based Alloy for Biomedical Application

• Authors: A. Kania , W. Pilarczyk , R. Babilas
• Languages of publication: EN

Abstracts

EN

Magnesium and its alloys are interesting materials for biodegradable implant applications. Magnesium alloys have very good strength properties, they are lightweight, but their main disadvantage is a low corrosion resistance in the physiological environment. Various modifications of a Mg alloys surface by deposition of different coatings are used to prevent untimely dissolution. The article presents the investigation results of a thin ZnO coating deposited on a MgCa2Zn1Gd3 alloy by means of the magnetron sputtering method. The studies include: scanning electron microscope observation of the ZnO surface, X-ray phase analysis, surface roughness measurement in atomic force microscopy, the microhardness test and potentiodynamic corrosion resistance test in the Ringer solution at 37°C. It was found that the ZnO coating is compact and continuous. It increases the hardness of the MgCa2Zn1Gd3 alloy and also improves its corrosion resistance. The corrosion potential is shifted slightly towards the positive values from -1.52 V to -1.50 V for the alloy with the ZnO coating.

Keywords

EN

68.55.-a; 61.05.cp; 68.37.Ps; 82.45.Bb

Discipline

• 61.05.cp: X-ray diffraction
• 68.55.-a: Thin film structure and morphology(for methods of thin film deposition, film growth and epitaxy, see 81.15.-z)
• 68.37.Ps: Atomic force microscopy (AFM)
• 82.45.Bb: Corrosion and passivation(see also 81.65.Kn Corrosion protection and 81.65.Rv Passivation in surface treatments)

• Journal: Acta Physica Polonica A
• Year: 2018
• Volume: 133
• Issue: 2
• Pages: 222-224

Dates

published

2018-02

Contributors

author

A. Kania

• Institute of Engineering Materials and Biomaterials, Silesian University of Technology, S. Konarskiego 18a, 44-100 Gliwice, Poland

author

W. Pilarczyk

• Institute of Engineering Materials and Biomaterials, Silesian University of Technology, S. Konarskiego 18a, 44-100 Gliwice, Poland

author

R. Babilas

• Institute of Engineering Materials and Biomaterials, Silesian University of Technology, S. Konarskiego 18a, 44-100 Gliwice, Poland

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Identifiers

DOI

10.12693/APhysPolA.131.222