Prediction of mechanical properties of hybrid aluminium composites

Girimurugan, R.; Pugazhenthi, R.; Suresh, T.; Maheskumar, Pon.; Vairavel, M.

doi:10.1016/j.matpr.2020.09.302

Cited by 10 publications

(9 citation statements)

References 14 publications

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“…Both impact and hardness have been proven to be critical in assessing the performance and durability of composites. [ 36–38 ] To generate a superhydrophobic surface with great transparency, epoxy resin was used as a trapping bulk. Strain, stress, viscoelasticity, elasticity, ductility, and plasticity all have a role in determining the hardness of a certain object.…”

Section: Resultsmentioning

confidence: 99%

Development of silica‐coated rare‐earth doped strontium aluminate toward superhydrophobic, anti‐corrosive and long‐persistent photoluminescent epoxy coating

et al. 2022

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Long‐persistent phosphorescent smart paints have the ability to continue glowing in the dark for a prolonged time period to function as energy‐saving products. Herein, new epoxy/silica nanocomposite paints were prepared with different concentrations of lanthanide‐doped aluminate nanoparticles (LAN; SrAl2O4:Eu2+,Dy3+). The LAN pigment was firstly coated with silicon dioxide (SiO2) utilizing the heterogeneous precipitation technique to provide LAN‐encapsulated between SiO2 nanoparticles (LAN@SiO2). The epoxy/silica/lanthanide‐doped aluminate nanoparticles (ESLAN) nanocomposite paints were coated on steel. The prepared ESLAN paints were studied by transmission electron microscopy (TEM), Fourier‐transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), X‐ray fluorescence (XRF) analysis, and energy‐dispersive X‐ray spectroscopy (EDS). The transparency and coloration properties of the nanocomposite coated films were explored by CIE Lab parameters and photoluminescence spectra. The ultraviolet‐induced luminescence properties of the transparent coated films demonstrated greenish phosphorescence at 518 nm upon excitation at 368 nm. Both hardness and hydrophobic activities were investigated. The anticorrosion activity of the nanocomposite films coated onto mild steel substrates immersed in aqueous sodium chloride (NaCl(aq)) (3.5%) was studied by electrochemical impedance spectroscopy (EIS). The silica‐containing coatings were monitored to exhibit anticorrosion properties. Additionally, the nanocomposite films with LAN@SiO2 (25%) exhibited the optimized long‐lasting luminescence properties in the dark for 90 min. The nanocomposite films showed highly reversible and durable long‐lived phosphorescence.

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Section: Resultsmentioning

confidence: 99%

Development of silica‐coated rare‐earth doped strontium aluminate toward superhydrophobic, anti‐corrosive and long‐persistent photoluminescent epoxy coating

et al. 2022

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“…The Rockwell hardness test is a comprehensive and common method used to determine the hardness values of thermoset materials. Girimurugan et al, were stated that test specimens were fabricated from composite sheets accordance with the ASTM D 785 standard, and the hardness test of the thermoset specimens was performed using the Rockwell hardness testing method 44 . The hardness of all nanocomposites was tested on five identical samples and average values were recorded.…”

Section: Methodsmentioning

confidence: 99%

“…Girimurugan et al, were stated that test specimens were fabricated from composite sheets accordance with the ASTM D 785 standard, and the hardness test of the thermoset specimens was performed using the Rockwell hardness testing method. 44 The hardness of all nanocomposites was tested on five identical samples and average values were recorded. Tensile stress-strain measurements were performed at room temperature using an MTS criterion model 45 universal linear test device at a speed of 2 mm/min according to ASTM D 638 standard.…”

Section: Mechanical Propertiesmentioning

confidence: 99%

The effect of novel advanced method on the properties of novolac hybrid nanocomposites reinforced with carbon nanotube and glass fiber

Kocaman

Çuvalcı

Çanakçı

2023

J of Applied Polymer Sci

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In this study, the effects of ball milling (BM) technique and carbon nanotube (CNT) content on the thermal and mechanical properties of hybrid reinforced composites were investigated. The composites were prepared using glass fiber (GF), novolac resin (No), and CNTs with different wt% (1, 2, and, 4). Various milling times were used to optimize the entanglement/agglomeration of CNTs in the polymer matrix and subsequently enhance the final thermal and mechanical properties. Through precise investigations, it was found that the nanocomposite with 2 wt% CNT reinforcement, subjected to 2 h of BM, exhibited remarkable enhancements in key properties. The tensile strength was significantly improved to 45.6 MPa, while the elastic modulus reached 3.419 GPa. Hardness was measured at 96 HRM, and thermal conductivity was enhanced to 0.463 W/mK. Moreover, this sample demonstrated a weight loss that was 43.65% lower compared to the sample reinforced with 1 wt% CNT and subjected to 1 h of BM. Overall, this study highlights the importance of optimizing the milling time and CNT content in the preparation of polymer nanocomposites, and it provides valuable insights for the development of advanced materials with superior performance in various applications.

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“…Theoretical densities of composites were calculated using rule of mixtures given in equation (2). Percentage porosity was calculated using equation (3). Here, density of RHA and CES was found to be 1.00 g/cc and 1.60 g/cc respectively, whereas density of AA7075 is taken as 2.81 g/cc.…”

Section: Methodsmentioning

confidence: 99%

“…These hybrid AMMCs have shown improved performance characteristics over composites with single reinforcements. 2,3 AMMCs have been widely used for manufacturing of various engineering components like pistons, brake drums, cylinder blocks, etc. 4 Friction and wear plays a vital role in determining the efficiency of these components.…”

Section: Introductionmentioning

confidence: 99%

Tribological characteristics of AA7075 composites reinforced with rice husk ash and carbonized eggshells

Gupta

Singh

Mishra

2021

Proceedings of the Institution of Mechanical Engineers, Part L:

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This paper investigates dry sliding friction and wear behavior of AA7075 composites reinforced with rice husk ash and carbonized eggshells. Composites with varying weight percentages of rice husk ash and carbonized eggshells in the range of 0–5 wt.% were fabricated through stir-casting technique. Density, porosity content, and microhardness were computed before tribological testing. Friction and wear tests were conducted on pin-on-disc type tribometer at room temperature. The samples were tested at different loads (10–50 N) with constant speed of 1 m/s and constant sliding distance of 1500 m. Samples were also tested at different sliding speeds (3 and 5 m/s) with constant normal load of 30 N. The addition of natural reinforcements decreased the density of composites. Microhardness of sample having 5 wt% rice husk ash increased by 15.08% over base composition. Maximum wear resistance was shown by sample with 5 wt% rice husk ash. Highest coefficient of friction was shown by sample with 3.75 wt% rice husk ash and 1.25 wt% carbonized eggshells. Wear loss varied directly with increasing load and sliding speeds for all composites, whereas coefficient of friction increased with increasing load and decreased with increasing sliding speed for all composites. Delamination and ploughing are dominant wear mechanisms at low speed whereas ploughing is the dominant wear mechanism at high speed as depicted by scanning electron microscopic images of worn surfaces. Composites with improved wear-resistant properties can be used for different tribological applications particularly in automotive industry.

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Prediction of mechanical properties of hybrid aluminium composites

Cited by 10 publications

References 14 publications

Development of silica‐coated rare‐earth doped strontium aluminate toward superhydrophobic, anti‐corrosive and long‐persistent photoluminescent epoxy coating

Development of silica‐coated rare‐earth doped strontium aluminate toward superhydrophobic, anti‐corrosive and long‐persistent photoluminescent epoxy coating

The effect of novel advanced method on the properties of novolac hybrid nanocomposites reinforced with carbon nanotube and glass fiber

Tribological characteristics of AA7075 composites reinforced with rice husk ash and carbonized eggshells

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