Najoua Barhoumi

ORCID: 0000-0002-7005-9601
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About
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Research Areas
  • Metal and Thin Film Mechanics
  • Tribology and Wear Analysis
  • biodegradable polymer synthesis and properties
  • Diamond and Carbon-based Materials Research
  • Polymer Nanocomposites and Properties
  • Polymer Nanocomposite Synthesis and Irradiation
  • Electrophoretic Deposition in Materials Science
  • Advanced materials and composites
  • Bone Tissue Engineering Materials
  • Metal Alloys Wear and Properties
  • Polymer Foaming and Composites
  • Copper-based nanomaterials and applications
  • Polymer crystallization and properties
  • Orthopaedic implants and arthroplasty
  • Injection Molding Process and Properties
  • Additive Manufacturing and 3D Printing Technologies
  • Electrodeposition and Electroless Coatings
  • Silicone and Siloxane Chemistry
  • Conducting polymers and applications
  • Epoxy Resin Curing Processes
  • Polymer composites and self-healing
  • High-Temperature Coating Behaviors
  • Polymer Science and PVC
  • Graphene and Nanomaterials Applications
  • Semiconductor materials and devices

National Engineering School of Tunis
2021-2025

Tunis El Manar University
2020-2024

Tunis University
2019-2023

Institut Préparatoire aux Études d'Ingénieurs de Monastir
2022

Ingenierie des Materiaux polymeres
2012-2013

Centre National de la Recherche Scientifique
2008

École Normale Supérieure - PSL
2008

Institut National des Sciences Appliquées de Lyon
2008

Université Claude Bernard Lyon 1
2008

Conductive PLA is an innovative composite material that combines the ecological benefits of polylactic acid, a biodegradable thermoplastic, with electrical conductivity properties. Usually used in additive manufacturing for its ease printing and low environmental impact, remains insulator, which limits applications field. To overcome this limitation, conductive fillers such as carbon nanotubes or black are being added, opening way to new functional uses. This study focuses on specific...

10.3221/igf-esis.72.18 article EN cc-by Frattura ed Integrità Strutturale 2025-03-24

A reactive rotational molding (RRM) process was developed to obtain a PA6 by activated anionic ring-opening polymerization of epsilon-caprolactam (APA6).Sodium caprolactamate (C10) and caprolactam magnesium bromide (C1) were employed as catalysts, difunctional hexamethylene-1,6-dicarbamoylcaprolactam (C20) used an activator.The kinetics the !-caprolactam into polyamide 6 monitored through dynamic rheology differential scanning calorimetry measurements.The effect processing parameters, such...

10.3144/expresspolymlett.2013.7 article EN publisher-specific-oa eXPRESS Polymer Letters 2012-11-05

10.1016/j.jmbbm.2023.105935 article EN Journal of the mechanical behavior of biomedical materials/Journal of mechanical behavior of biomedical materials 2023-05-30

To increase the lifetime of metallic molds and protect their surface from wear, a fluorinated ethylene propylene (FEP) polymer was coated onto stainless-steel (SS304) substrate, using an air spray process followed by heat treatment. The microstructural properties coating were studied scanning electron microscopy (SEM) energy-dispersive X-ray spectroscopy (EDS) as well diffraction. mechanical adhesion behavior analyzed via nanoindentation test progressive scratching. According to results, FEP...

10.3390/polym14020347 article EN Polymers 2022-01-17

10.1016/j.jmbbm.2022.105534 article EN Journal of the mechanical behavior of biomedical materials/Journal of mechanical behavior of biomedical materials 2022-10-18

Organic polymer coatings have been extensively used for painting in industrial applications to prevent the deleterious effects on metallic components.In this study, electrostatic polyester with two amounts of graphite (5 and 10 wt% Gr) were deposited structural steel substrate.The effect Gr addition microstructure, mechanical, adhesion tribological behavior characterized using SEM, EDS, XRD, nano-indentation scratch test.The coatings' resistance corrosion was investigated electrochemical...

10.3144/expresspolymlett.2022.36 article EN publisher-specific-oa eXPRESS Polymer Letters 2022-01-01

To improve the corrosion resistance performance of TiO2 thin films, a coating was prepared on 316 L stainless steel substrate following electrophoretic deposition process. The structural, surface composition and morphological compositions films were analyzed by Scanning electron microscopy (SEM), Energy Dispersive Spectroscopy (EDS) X-ray Diffraction (XRD), respectively. Micro-scratch tester used to investigate tribological properties examined employing electrochemical impedance spectroscopy...

10.1016/j.jmrt.2020.03.055 article EN cc-by-nc-nd Journal of Materials Research and Technology 2020-04-19

Abstract Blending polypropylene to recycled PA6 industrial wastes at different compositions, with and without compatibilizer PPgMA was produced in a corotating twin screw extruder where, acts as the polymer matrix polyamide dispersed phase. Several techniques were used investigate morphology, thermal, viscoelastic tensile properties of these blend. Binary PP/PA6 blends showed presence particles PP continuous phase exhibited coarse morphology. Increasing contents blend increased their...

10.1002/app.27542 article EN Journal of Applied Polymer Science 2007-12-03

The interesting mechanical properties of polyether ether ketone give the material a place among foremost competitors when it comes to replacing metal. Fused deposition modeling has been recognized as an alternative method process parts. In this study, effect different parameters such nozzle, bed, and radiant temperatures well printing speed layer thickness on tensile three-dimensional printed was investigated. optimization PEEK were studied by performing reduced number experiments, using...

10.1177/14644207211017572 article EN Proceedings of the Institution of Mechanical Engineers Part L Journal of Materials Design and Applications 2021-06-21

Abstract Blends of recycled poly(butylene terephthalate) (PBT) parts obtained from scrapped cars, and virgin polypropylene (PP), were prepared in a twin‐screw extruder at different compositions. Selected compositions also with the presence ethylene‐ co ‐glycidyl methacrylate copolymer (E‐GMA) ethylene/methyl acrylate/glycidyl terpolymer (E‐MA‐GMA) compatibilizers. The effect composition type compatibilizer, as well mixing conditions, on morphology phase, thermal, viscoelastic behavior,...

10.1002/pen.21116 article EN Polymer Engineering and Science 2008-06-25

TiO 2 coatings have recently been used as corrosion resistant materials to protect metals in several environments. In this study, the microstructure, phase composition and morphology under different voltages (20, 30 40 V) were investigated using scanning electron microscopy (SEM), X-ray diffraction (XRD) atomic force (AFM), respectively. The coating performance was examined by potentiodynamic polarization 3.5 wt% NaCl solution. Experimental findings indicate that thickness cracks of rise...

10.1177/0954406219890373 article EN Proceedings of the Institution of Mechanical Engineers Part C Journal of Mechanical Engineering Science 2019-12-15

In this study, chromium nitride-based CrSiN coatings were deposited by PVD (physical vapour deposition) magnetron sputtering on XC100 steel substrate. Mechanical properties of investigated using monotonic nanoindentation test. It was found that had excellent mechanical properties, hardness 30.52 ± 1.85 GPa and elastic modulus 338.32 13.5 GPa. Fatigue behaviour thin film studied multi-cycles Under cyclic nanoindentation, the unloading–reloading paths produced hysteresis loops which reflect a...

10.1080/17515831.2020.1844518 article EN Tribology - Materials Surfaces & Interfaces 2020-11-26

The thermal and mechanical properties of Polycarbonate Acrylonitrile–Butadiene–Styrene (PC/ABS) blends are more accepted as substitutes for metals especially in automotive industries. In addition, like metals, PC/ABS can be electroplated, which enhances their application range gives them an attractive design. This study purported to characterize the surface investigate adhesion behavior electroplated parts order further facilitate integration cheaper lighter alternative materials. To achieve...

10.1080/01694243.2022.2089317 article EN Journal of Adhesion Science and Technology 2022-06-22

Abstract CrSiN coating was deposited by physical vapor deposition (PVD) magnetron sputtering on XC100 steel substrate. Microstructural and morphological properties were studied using scanning electron microscopy (SEM)/energy dispersive spectroscopy (EDS), X-ray diffraction (XRD), atomic force (AFM). Nanoindentation scratching experiments conducted to study the mechanical adhesion behavior. Multi-pass scratch tests under different sliding conditions. Results showed that has a dense compact...

10.1115/1.4052239 article EN Journal of Engineering Materials and Technology 2021-08-24

The present study attempted to synthesize ZnO nanoparticles (ZnO-NPs) and incorporate them into PMMA fabricate a polymethylmethacrylate/Zinc Oxide Nano-particles (PMMA/ZnO-NPs) composite with concentrations of NPs 1% wt, 2% wt 3% for potential use in orthotic devices. chemical composition, the microstructure morphology obtained composites were characterized using X-ray powder diffraction, transmission electron microscopy, scanning microscopy energy dispersive spectroscopy. mechanical...

10.2139/ssrn.4356007 article EN SSRN Electronic Journal 2023-01-01
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