Structural, Corrosion And Mechanical Properties Of Sputtered Deposited Chromium Tungsten Nitride (Cr1-xWxN) Nanocomposite Thin Films

Ravi Prakash1, R. Jayaganthan2 and Davinder Kaur1*

Adv. Mater. Lett., 2016, 7 (9), pp 723-729

DOI: 10.5185/amlett.2016.6362

Publication Date (Web): Jul 09, 2016



Chromium tungsten nitride (Cr1-xWxN) thin films were successfully deposited on the silicon (100) substrate using dc magnetron reactive co-sputtering. The structural, surface morphological, electrochemical and mechanical properties were studied using X-ray diffraction, field emission-scanning electron microscopy, atomic force microscopy, electrochemical potentiostat and nanoindentation respectively. X-ray diffraction pattern with different atomic concentrations of tungsten (0<x<0.61) shows the presence of (111) and (200) orientation. The content of tungsten (W) in these thin films was controlled by varying the power on the W target. A small amount of tungsten addition led to the significant change in the structural, electrochemical and mechanical properties of the Cr1-xWxN films. The crystallite size varies from 31.1 nm to 15.2 nm with the W content due to variation in nucleation rate and reduction of the self-shadowing effect of the deposition process. Electrochemical properties of these thin films were studied by Tafel polarization curves, which explored the enhancement in corrosion rate due to the higher ratio of real surface area and projected area after a certain amount of W addition. Hardness follows the Hall-Petch relation and tends to increase with the decrease in grain size. Highest hardness 43.18 Gpa and elastic modulus 341.02 Gpa were achieved at the grain size of 15.2 nm in Cr0.48W0.43N thin film. 


Magnetron, crystallite size, corrosion rate, nanoindentation, hardness.

Current Issue
The Journey of a Decade to Advancing Materials
Are the Electrospun Polymers Polymeric Fibers?
Mechanical and Thermal Properties of Composite Material and Insulation for a Single Walled Tank for Cryogenic Liquids
Prediction of Long-Term Behavior for Dynamically Loaded TPU
Investigation of Doped Titanium Dioxide in Anatase Phase. Study ab initio using Density Functional Theory
Comparison between Single Al2O3 or HfO2 Single Dielectric Layers and their Nanolaminated Systems
Preparation of Stable and Optimized Antibody-gold Nanoparticle Conjugates for Point of Care Test Immunoassays
Resonance-Based Temperature Sensors using a Wafer Level Vacuum Packaged SOI MEMS Process
Integrated System Based on the Hall Sensors Incorporating Compensation of the Distortions
The Efficacy of Cinnamomum Tamala as a Potential Antimicrobial Substance against the Multi-Drug Resistant Enterococcus Faecalis from Clinical Isolates
The Effect of Complexing Reagent on Structural, Electrical and Optical Properties of CuS Thin Film
Laser Cladding of Fluorapatite Nanopowders on Ti6Al4V
Preparation and Evaluation of Sulfonate Polyethylene Glycol Borate Ester as a Modifier of Functional Properties of Complex Petroleum Lithium Grease

Upcoming Congress

Knowledge Experience at Sea TM