Dry sliding wear characteristics of natural fibre reinforced poly-lactic acid composites for engineering applications: Fabrication, properties and characterizations

Journal of Materials Research and Technology, Journal Year: 2023, Volume and Issue: 23, P. 1189 - 1203

Published: Jan. 5, 2023

Natural fibre composites have emerged as a viable alternative to conventional polymer composites, after environmental concerns gain popularity. In recent years, tremendous growth in the applications of natural been observed, particularly field construction, well aerospace and automotive industries. The present study investigates feasibility developing novel tribo-material by reinforcing biopolymer with easily accessible inexpensive plant fibres from surroundings. were treated chemically prior fabrication. injection molding process was used fabricate laminated incorporating three different kinds (sisal, banana, bagasse) into Poly-lactic acid (PLA) matrix at 10% 20% concentrations. Wear properties fabricated studied on digital display controlled pin-on-disc test rig. parameters under dry sliding conditions distance (1000–3000 m), speed (2,4 6 m/s) applied load (10 N). experimental results depict that incorporation improved tribological neat PLA matrix. worn surfaces developed examined using scanning electron microscope wear mechanism.

Language: Английский

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Effects of Elevated Temperature on the Residual Behavior of Concrete Containing Marble Dust and Foundry Sand

Materials, Journal Year: 2022, Volume and Issue: 15(10), P. 3632 - 3632

Published: May 19, 2022

Concrete is a composite material that commonly used in the construction industry. It will certainly be exposed to fires of varying intensities when buildings and industries. The major goal this article was look into influence mineral additions such as foundry sand marble dust on residual characteristics concrete. To examine behavior concrete after fire exposure, substituted for cement fine amounts ranging from 0% 20%. aided better disposal waste so it might an addition. purpose experiment see how increased temperatures affected properties concrete, including flexural strength, compressive tensile static well dynamic elastic modulus, water absorption, mass loss, ultrasonic pulse velocity. At 200 °C, 400 600 800 1000 typical exposure investigated. effects two cooling techniques, annealing quenching, high were investigated study. Replacement up 10% with °C does not above however, breakdown which includes sand, causes rapid deterioration primarily replacement more than 10%.

Language: Английский

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Mechanical Properties of Hybrid Lignocellulosic Fiber-Reinforced Biopolymer Green Composites: A Review

Fibers and Polymers, Journal Year: 2023, Volume and Issue: 24(2), P. 337 - 353

Published: Feb. 1, 2023

Language: Английский

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Homogeneity, metallurgical, mechanical, wear, and corrosion behavior of Ni and B4C coatings deposited on 304 stainless steels developed by microwave cladding technique

Journal of Materials Research and Technology, Journal Year: 2023, Volume and Issue: 27, P. 5854 - 5867

Published: Nov. 1, 2023

The microwave cladding technique for depositing Ni and 10 % B4C coatings on 304 stainless steel has yielded significant advancements in material properties performance. key findings of this study revealed remarkable improvements, including a 43.33% increase hardness, indicating enhanced wear resistance mechanical properties. This improvement was attributed to the uniform distribution surface, ensuring consistent interfacial layer developed between SS surface without cracks porosity. Microstructural analysis at 500× magnification unveiled an impressive 2233.35 grains per square inch, showcasing refined grain structure achieved during process. Wear testing demonstrated low rate 0.00308 mm³/m favorable coefficient friction 0.1981, confirming material's suitability applications with demanding frictional conditions. Furthermore, corrosion behavior coated assessed, revealing minimal weight loss only 0.42 mg 10% sample. presence various carbide phases, such as Cr2C, Cr23C6, Cr7BC4, Fe5C2, Fe23B6, within further contributed

Language: Английский

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Optimization of chemical treatment process parameters for enhancement of mechanical properties of Kenaf fiber-reinforced polylactic acid composites: A comparative study of mechanical, morphological and microstructural analysis

Journal of Materials Research and Technology, Journal Year: 2023, Volume and Issue: 26, P. 8366 - 8387

Published: Sept. 1, 2023

As advancements in sustainable material science continue, kenaf fiber and polylactic acid (KF/PLA) composites have emerged as promising eco-friendly alternatives. The current research article has focused on improving the physical strength of these KF/PLA composites. Methodologies like Taguchi's Grey Relational Analysis (GRA) been employed to identify most effective ways enhance chemical treatment process. were manufactured using an injection molding technique while essential variables modified. These comprised choice treatments (sodium hydroxide, potassium or sodium acetate), concentration chemicals (1%, 2%, 3% w/v), duration (2, 4, 6 hours). modifications led production diverse composite variants. modified was evaluated various methods, focusing their tensile strength, modulus, elongation under tension, flexural deformability bending, impact resistance. A Scanning Electron Microscope (SEM) utilized observe treated tested samples detail. optimal values identified through GRA mean plots same for composite. Improved mechanical properties observed when conditions A1-B2-C2 (NaOH, 4 hours) applied. Although, morphology PLA matrix-based bio reinforced with different surface-treatments recorded AFM analysis order further reveal surface roughness fibers upon modification dispersion.

Language: Английский

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Unveiling of grain structure, porosity, phase distributions, microstructural morphology, surface hardness, and tribo-corrosion characteristics of nickel, and titanium dioxide-based SS-304 steel microwave composite coatings cladding

Journal of Materials Research and Technology, Journal Year: 2023, Volume and Issue: 28, P. 4299 - 4316

Published: Dec. 30, 2023

The microstructure, homogeneity, and tribo-corrosion behavior of microwave-developed Nickel as well titanium dioxide SS-304 cladding surfaces are the primary emphasis this research. study includes assessing hardness enhancement from Ni TiO2 particles in surface. investigation additionally evaluates surface wear rates, friction coefficients, resistance to corrosion under tribological conditions. with developed by microwave energy were investigated study. microstructure was being examined validate uniformly homogeneous dispersion particles, XRD employed determine phases. evaluated, a pin-on-disk tribometer has assessed behavior. Tribo-corrosion tested 3.5-percent NaCl solution. To enhance cladding's efficiency, hybrid heating (MHH) utilising charcoal susceptor been employed. Findings exhibited that analysis showed had uniform distribution compact microstructure. significantly improved about 37.68% due incorporation 10% particles. FeNi3, NiSi2, Ni3C, NiC, Ni2Si, FeNi, phases seen on conditions also evaluated using tribometer. outcomes have decreased rates coefficients compared uncoated substrate. Moreover, 3.5% rate coefficient measured be 0.00412 mm3/m 0.297, respectively. results indicated enhanced

Language: Английский

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Investigation on mechanical properties and wear behavior of basalt fiber and SiO2 nanofillers reinforced composites

Results in Engineering, Journal Year: 2024, Volume and Issue: 23, P. 102722 - 102722

Published: Aug. 10, 2024

This study explored the fabrication and evaluation of basalt fiber-reinforced composites containing silicon dioxide (SiO2) nanofillers. Hand layup followed by vacuum bagging was used to create composite specimens with mold dimensions 300 × 3 mm³. The mechanical properties, hardness, wear resistance fabricated were assessed according ASTM standards. SiO2 nanofillers significantly improved flexural properties composites, a remarkable increase 178 % 26 in strength modulus, respectively. Additionally, tensile modulus also enhanced. hardness reached maximum 86 at 6 wt SiO2, owing better interfacial bonding reduced debris size. Wear tests revealed that rate weight loss, which attributed FESEM analysis provided insights into fracture mechanisms, showing enhanced energy dissipation controlled crack propagation. concluded enhance durability laminates.

Language: Английский

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Preference Index of Sustainable Natural Fibers in Stone Matrix Asphalt Mixture Using Waste Marble

Materials, Journal Year: 2022, Volume and Issue: 15(8), P. 2729 - 2729

Published: April 7, 2022

The present study investigates the preference index of natural fibers such as sisal, coir, and rice straw in stone matrix asphalt mixtures (SMA), using waste marble filler. Waste was used filler crushed by abrasion machine sieved according to SMA requirements. SEM topography EDS analysis were also carried out. Marshall test conducted, which is most acceptable, cost-effective, widely adopted method estimate optimum bitumen examine several Measures, flow value, voids filled with (VFB), stability, mineral aggregate (VMA), air (VA). Furthermore, tests performed on specimen amount bitumen, different percentages fibers, calculate drain down, moister sensitivity, Stability. Multi-criteria decision-making (MCDM) techniques implemented obtain subjective objective weights, further compute values fiber contents. outcomes revealed favorable results for usage dust Stone Matrix Asphalt (SMA). In addition, upshots are inclined toward over coir followed sisal fiber. It observed that value at 0.3 varied from 0.918, 0.925, 0.931 equal, objective, respectively. maximum down 0.335 based ASTM-D 6390 IRC-SP-79 against percent Moreover, per prescribed limit MoRTH, because thin film around aggregates, moisture susceptibility characteristics, i.e., better resistance moisture, enhanced more than 80%.

Language: Английский

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Utilisation of waste marble dust in concrete production: A scientometric review and future research directions

Journal of Cleaner Production, Journal Year: 2022, Volume and Issue: 374, P. 133872 - 133872

Published: Sept. 13, 2022

Language: Английский

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Study on the physicomechanical, fracture-deformation, interface-adhesion, and water-absorption properties of twill fabric cotton-bamboo/epoxy composites

Journal of Materials Research and Technology, Journal Year: 2023, Volume and Issue: 24, P. 8429 - 8442

Published: May 1, 2023

Natural fibre reinforced composites are being used in a variety of industries. Epoxy matrix with woven bamboo-cotton has been fabricated via., hand lay-up technique and compression moulding technique. In the fabrication composite panels, number layers varied from 8 to 14 according weight fabric. The tensile, bending, impact, compression, water-absorption, ILS properties for developed have tested or examined. SEM characterization was examine fractured morphology assess interface-strength composites. It found that increasing improved composites' physico-mechanical properties. Due micro-voids, detachment, hydrophilic nature natural fibres, cotton/bamboo twill fabric absorb most water. addition, results demonstrated debonding, which actually result weak-bonding amid matrix, cause escalated water absorption behavior. Hence, suitable applications moderate load bearing, including automobile body parts structural components require sufficient strength.

Language: Английский

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