Improving corrosion resistance of aluminum by zirconium carbide thin films

Heidarnia, Ali; Ghomi, Hamidreza

doi:10.47176/ijpr.23.1.91579

Improving corrosion resistance of aluminum by zirconium carbide thin films

Document Type : Original Article

Authors

Ali Heidarnia

Hamidreza Ghomi

Laser and Plasma Research Institute, Shahid Beheshti University, Evin 1983963113, Tehran, Iran

https://doi.org/10.47176/ijpr.23.1.91579

Abstract

In this paper, zirconium carbide (ZrC) thin films were deposited on glass and aluminum substrates using DC magnetron sputtering. It was found that different ratios of acetylene gas (C₂H₂, as a reactive gas) in the gas mixture of acetylene and argon (Ar, as a sputtering gas) affect the microstructural properties, corrosion behavior, and protection efficiency of ZrC thin films. X-ray diffraction (XRD) was used to characterize the microstructural properties of thin films. The corrosion behavior of thin films in a 3.5% NaCl solution was evaluated by potentiodynamic polarization tests and electrochemical impedance spectroscopy (EIS). FESEM was also employed to examine thin films' surface morphology and thickness.

Keywords

corrosion

potentiodynamic polarization test

zirconium carbide

thin film

magnetron sputtering

Subjects

Thin Films

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