Browsing by Subject "Nanoindentation"
Now showing items 1-17 of 17
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Characterizing fracture toughness using machine learning
( Elsevier B.V. , 2021 , Article)The existing models for fracture toughness characterization based on nanoindentations that account for the fracture length are limited to simple (ideal) geometries that are absent in shales. The present study proposes two ... -
Constitutive analysis for the quantification of hardness decay in a superlattice CrN/NbN hard-coating
( Elsevier B.V. , 2015 , Article)In the present study, a constitutive analysis of the evolution of the mechanical response of a CrN/NbN superlattice coating exposed to high temperature has been performed. Parametric approaches were used to obtain a single ... -
Effect of reinforcement concentration on the properties of hot extruded Al-Al2O3 composites synthesized through microwave sintering process
( Elsevier Ltd , 2017 , Article)In this study, Aluminum matrix composite reinforced with 5, 10 and 15 vol% Al2O3 particles were fabricated using microwave assisted rapid sintering technique followed by hot extrusion. The effect of concentration of Al2O3 ... -
Effect of reinforcement concentration on the properties of hot extruded Al-Al2O3 composites synthesized through microwave sintering process
( Elsevier Ltd , 2017 , Article)In this study, Aluminum matrix composite reinforced with 5, 10 and 15 vol% Al2O3 particles were fabricated using microwave assisted rapid sintering technique followed by hot extrusion. The effect of concentration of Al2O3 ... -
Effect of Silicon Nitride and Graphene Nanoplatelets on the Properties of Aluminum Metal Matrix Composites
( Qatar University Press , 2021 , Poster)This research work aims at investigating the influence of a fixed content of silicon nitride (Si3N4) and varied contents of graphene nanoplatelets (GNPs) on the physical and mechanical properties of Al-Si3N4-GNPs composites. ... -
Effect of silicon nitride and graphene nanoplatelets on the properties of aluminum metal matrix composites
( MDPI AG , 2021 , Article)This research work aims at investigating the influence of a fixed content of silicon nitride (Si3N4) and varied contents of graphene nanoplatelets (GNPs) on the physical (density, structural, morphological) and mechanical ... -
Effect of zirconia nanotube coating on the hydrophilicity and mechanochemical behavior of zirconium for biomedical applications
( Elsevier , 2022 , Article)Zirconium has attracted considerable attention in the biomedical field owing to its biocompatibility and desirable tribological and mechanical properties. In this study, we anodized pure zirconium in an ammonium fluoride ... -
Experimental prediction of the elastic properties of nanocomposite cementitious materials based on nanoindentation measurements
( American Scientific Publishers , 2017 , Article)This paper provides in depth novel exploration of the local mechanical properties of nanocomposite cement using the nanoindentation technique. The elastic properties of carbon nanotubes (CNTs)-reinforced and unreinforced ... -
Improved mechanical and corrosion properties of nickel composite coatings by incorporation of layered silicates
( Elsevier B.V. , 2014 , Article)Layered silicates as exfoliated montmorillonite are incorporated into nickel films by electrodeposition, enhancing both corrosion resistance and hardness. Films were deposited onto stainless steel from a plating solution ... -
Investigation of the tribological and biomechanical properties of CrAlTiN and CrN/NbN coatings on SST 304
( Elsevier Ltd , 2017 , Article)This study examines the influence of thin layer coatings of CrAlTiN and CrN/NbN, deposited via physical vapor, on the biocompatibility, mechanical, tribological, and corrosion properties of stainless steel 304. The ... -
Mechanical and microstructure characterization of hard nanostructured N-bearing thin coating
( Associazione Italiana di Metallurgia , 2015 , Article)Tools for machining are made of hard steels and cemented carbide (WC-Co). For specialized applications, such as aluminium machining, diamond or polycrystalline cubic boron nitride are also used. The main problem with ... -
Micromechanical properties of hydroxyapatite nanocomposites reinforced with CNTs and ZrO2
( Elsevier , 2023 , Article)This study examined the mechanical properties, wettability, and tribology of hydroxyapatite (HA)–zirconia (ZrO2)–carbon nanotube (CNTs) ceramic nanocomposites (with various CNT ratios (x): 1, 5, and 10 wt%). HA–ZrO2–CNT-x ... -
Nanomechanical properties of plasma treated polylactic acid
( Maney Publishing , 2015 , Article)In this work, a radio frequency discharged plasma generated in air atmosphere by pressure has been used to modify polylactic acid (PLA) surface. The results were evaluated through nanoindentation testing. Contact angle ... -
Novel electrodeposited Ni-B/Y 2 O 3 composite coatings with improved properties
( MDPI AG , 2017 , Article)Ni-B/Y 2 O 3 composite coatings were developed through an electrodeposition process to study the effect of addition of Y 2 O 3 particles on structure, surface, thermal, mechanical, and anticorrosion properties of Ni-B ... -
Synthesis and Characterization of Ni-P-Ti Nanocomposite Coatings on HSLA Steel
( Qatar University Press , 2020 , Poster)Nickel Phosphorus (Ni-P) coatings possess tailored mechanical, and anticorrosion properties and have found applications in industries like automotive, oil and gas, electronics, and aerospace. Their properties can further ... -
Tribo-mechanical properties and corrosion behavior investigation of anodized Ti-V alloy
( MDPIAG , 2018 , Article)In the work presented in this manuscript, a self-organized TiO2 nanotube array film was produced by electrochemical anodization of a Ti-V alloy in an electrolyte containing NH4F/H3PO4 and then annealed at different ... -
Tribological behaviour of 1D and 2D nanofiller based high densitypoly-ethylene hybrid nanocomposites: A run-in and steady state phase analysis
( Elsevier Ltd , 2017 , Article)Hybrid nanocomposites are a class of materials with exceptional properties due to the synergizing effect of individual fillers. Current work reports the tribological behaviour of high densitypolyethylene-(HDPE) reinforced ...