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Kharb, Archana Singh
in Cooperation with on an Cooperation-Score of 37%
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Publications (4/4 displayed)
- 2024The effect of sputtering parameters and doping on the properties of CrN‐based coatings—A critical reviewcitations
- 2023Study on Magnetron Sputtered Nb‐Doped ZnO Thin Films switching properties for RRAM Applicationscitations
- 2023Impact of sputtering gas on the microstructural, mechanical and wetting properties of vanadium nitride coatingscitations
- 2023A review of mechanical and tribological properties of Ni<sub>3</sub>Al-based coatings-synthesis and high-temperature behaviorcitations
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article
Impact of sputtering gas on the microstructural, mechanical and wetting properties of vanadium nitride coatings
Abstract
<jats:title>Abstract</jats:title><jats:p>Vanadium nitride (VN) coatings were deposited via reactive DC magnetron sputtering technique on a hot substrate (400 °C) with varying partial pressure of N<jats:sub>2</jats:sub>. The impact of nitrogen partial pressure on the crystal structure, microstructure, elemental composition, surface topography, mechanical and wetting properties of VN coatings was investigated using grazing incidence X-ray diffraction (GIXRD), Raman spectroscopy, field emission scanning electron microscope (FESEM), energy dispersive spectroscopy (EDS), atomic force microscope (AFM), nano-indentation, and drop shape analyzer (DSA). The variation in the N<jats:sub>2</jats:sub> partial pressure leads the significant changes in the microstructure, mechanical and wetting properties of the coatings. The GIXRD spectra reveals the formation of crystalline FCC phase in the deposited VN coatings. However, at 100% N<jats:sub>2</jats:sub> partial pressure, the preferred orientation of crystal planes changes from (200) to (220). The FESEM image reveals that at low N<jats:sub>2</jats:sub> partial pressure, the coating exhibits well-separated grains with clearly visible grain boundaries. As the N<jats:sub>2</jats:sub> partial pressure increases, the agglomeration of grains becomes more pronounced, and the grain boundaries become less discernible. However, at 100% N2 partial pressure, the structure transforms into triangular nanoflake-like prismatic structures with voids. The VN coatings with 60% N<jats:sub>2</jats:sub> partial pressure exhibits the highest mechanical properties whereas at 100% N<jats:sub>2</jats:sub> partial pressure, the VN coatings reveal super-hydrophilic character.</jats:p>