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Highly Oriented Zirconium Nitride and Oxynitride Coatings Deposited via High‐Power Impulse Magnetron Sputtering: Crystal‐Facet‐Driven Corrosion Behavior in Domestic Wastewater
Author(s) -
Dettlaff Anna,
Brodowski Mateusz,
Kowalski Marcin,
Stranak Vitezslav,
Prysiazhnyi Vadym,
Klugmann-Radziemska Ewa,
Ryl Jacek,
Bogdanowicz Robert
Publication year - 2021
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.202001349
Subject(s) - materials science , corrosion , high power impulse magnetron sputtering , zirconium , nitride , zirconium nitride , coating , sputter deposition , dielectric spectroscopy , metallurgy , cubic zirconia , sputtering , chemical engineering , electrochemistry , analytical chemistry (journal) , ceramic , thin film , composite material , layer (electronics) , electrode , nanotechnology , titanium nitride , chemistry , chromatography , engineering
Herein, highly crystalline Zr x N y and Zr x N y O z coatings are achieved by the deposition via high‐power impulse magnetron sputtering. Various N 2 and N 2 /O 2 gas mixtures with argon are investigated. The chemical composition and, as a result, mechanical properties of the deposited layer can be tailored along with morphological and crystallographic structural changes. The corrosion resistance behavior is studied by potentiodynamic measurements and electrochemical impedance spectroscopy in a sample of synthetic wastewater designed to imitate real‐life domestic wastewater. The corrosion current density of the Zr x N y O z coating is in the range of 33–70 μA cm −2 , whereas for the zirconium nitride layers, values below 1.0 μA cm −2 are achieved. The highest corrosion resistance of 64 nm year −1 is observed for the Zr x N y coating deposited with 1.00% N 2 content in the gas mixture with a corrosion potential of −0.41 V Ag/AgCl.