A5032867012- Metal and Thin Film Mechanics
- Diamond and Carbon-based Materials Research
- Corrosion Behavior and Inhibition
- Semiconductor materials and devices
- High-Temperature Coating Behaviors
- Advanced materials and composites
- Hydrogen embrittlement and corrosion behaviors in metals
- Tribology and Wear Analysis
- Electrocatalysts for Energy Conversion
- Fuel Cells and Related Materials
- GaN-based semiconductor devices and materials
- Lubricants and Their Additives
- Boron and Carbon Nanomaterials Research
- MXene and MAX Phase Materials
- High Entropy Alloys Studies
- Copper Interconnects and Reliability
- Electrodeposition and Electroless Coatings
- Ion-surface interactions and analysis
- Anodic Oxide Films and Nanostructures
- Advanced Machining and Optimization Techniques
- Surface Treatment and Residual Stress
- Titanium Alloys Microstructure and Properties
- Dental materials and restorations
- Surface Treatment and Coatings
- Plasma Diagnostics and Applications
Bu-Ali Sina University
2016-2024
Pusan National University
2016
Tarbiat Modares University
2008-2012
In this investigation, we studied deposition of chromium nitride (CrN) and aluminum (AlCrN) coatings on the steel substrate by using cathodic arc evaporation technique (Arc-PVD). Therefore, wear corrosion behavior CrN AlCrN were compared. Applying at 200 °C for 90 min led to a coating with approximately 2 micrometers thickness. order compare properties coatings, all Arc-PVD methods parameters kept constant value within having duty cycle 50 percent, bias voltage −100 V, target current 100 A....
The main goal of this study is to compare the electrochemical behavior CrN/TiN multilayer coating and TiN single-layer applied by cathodic arc evaporation (CAE) -physical vapor deposition (PVD) on substrate Ti-6Al-4 V in Hank’s solution. So, a was formed using PVD method as well under totally same conditions including temperature, working pressure, bias voltage, cathode current time. To identify phases coatings, X-ray diffraction (XRD) utilized order field emission scanning electron...
The main aim of this study is to develop ZrN/CrN nanolayered coatings with bilayers periods 10 (10 L), 20 (20 L) and 30 (30 over AISI 304 stainless steel also evaluating the effect nanolayers architecture on their electrochemical behavior. were deposited from chromium zirconium targets using cathodic arc evaporation physical vapor deposition (Arc-PVD) technique in a nitrogen atmosphere. nanolayer microstructure morphology evaluated X-ray diffraction (XRD), atomic force microscopy (AFM),...
High‐entropy metal sublattice coatings (HESCs) prepared by physical vapor deposition (PVD) have received attention due to their diverse range of properties and applications. One the most critical requirements for synthesis is prediction control widespread properties, several efforts been undertaken using various thermodynamical parameters. The majority these predictions concentrate on high‐entropy alloys (HEAs) while ceramics receive little attention. important parameters structure HEAs...
Multilayer CrN/CrAlN coatings were deposited on the 420-SS by cathodic arc evaporation system with different duty cycles of bias-voltage. The films characterized XRD and FESEM techniques. Mechanical, electrochemical, surface properties studied nano-indentation, AFM analysis. Microstructure investigation confirmed formation adhesive dense nanostructure multilayer film. Increasing cycle led to decrease in coating grain size promoted hardness 34.1 ± 4 GPa. A clear reduction distribution...
Metallic materials used in medicine and dentistry should have high corrosion resistance biocompability. In this study, the influence of TiN, CrN TiN/CrN layers on hardness, surface roughness, Ni–Cr ceramic dental alloys an artificial saliva environment (pH = 8) were evaluated. produced by lost-wax casting nanolayer coatings deposited means arc-physical vapor deposition method. The microstructural characterization selected was performed before after electrochemical tests, using scanning...
The present study aims to determine the effect of Al on corrosion resistance nanostructured TiAlN coatings deposited using a pulsed direct current plasma-assisted chemical vapor deposition (pulsed-DC PACVD) technique. were synthesized with three different Al-content values by distinct precursor’s ratio AlCl3-to-TiCl4. number AlCl3-to-TiCl4 precursor ratios was changed from 1 3 in order vary content. FE-SEM, XRD, EPMA and Knoop micro-hardness tester used characterize coated surfaces...
In this study, a zirconium nitride/chromium nitride nano-multilayer coating was deposited on AISI 304 specimen using cathodic arc evaporation-physical vapor deposition (CAE-PVD). The characterization of the samples were evaluated by scanning electron microscopy (SEM), field emission-SEM (FE-SEM), and X-ray diffraction (XRD). To evaluate effect immersion time electrochemical behavior ZrN/CrN impedance spectroscopy (EIS) measurements carried out in 3.5 wt. % NaCl media. Using CAE-PVD method,...