Mechanical and tribological behaviours of epoxy hybrid composites reinforced by carbon fibers and silicon carbide whiskers

Adappa, Karthik; Subramani, Nithin Kundachira

doi:10.1016/j.matpr.2018.06.027

Cited by 20 publications

(13 citation statements)

References 19 publications

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“…Addition of the nanofiller up to 5 wt.% reduced the Ks and COF. Further addition, increased the particle aggregation, particle-particle interface, reduced adhesion, and poor bonding between the filler and the matrix materials [25][26][27].…”

Section: Introductionmentioning

confidence: 99%

Dynamic Mechanical Analysis and Optimization of Hybrid Carbon-Epoxy Composites Wear using Taguchi Method

Divya¹,

Somashekar²,

Jamadar³

2021

Tribol. Ind.

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The purpose of this research work is to explore the potential of nano silicon dioxide (nSiO2) with the carbon fiber reinforced epoxy (CF/Ep) composite for achieving better wear resistance and viscoelasticity. An effort is made to improve the material behavior by modifying epoxy with silane treated nSiO2. Ultrasonication process is used to disperse the nano particles uniformly within the matrix material. Mono CF/Ep composite and hybrid nSiO2-CF/Ep composites are fabricated by vacuum bagging method. Post curing of the composites is carried out effectively. Dry sliding wear tests are conducted using Taguchi technique by considering four levels, three factors namely, filler loading (0, 0.5, 1.5, and 3 wt.%), sliding velocity (0.75, 1.5, 2.25 and 3 m/s) and load (15, 30, 45, and 60 N). Further from the analysis of variance, the impact of each factor and level on specific wear rate (Ks) and coefficient of friction (COF) are examined. The result revealed that the lowest Ks and COF are in 3 wt.% nSiO2 filled CF/Ep hybrid composite. The optimum control factor-level combinations identified from the experiments, for achieving lowest Ks (0101×10 -13 m 3 /Nm) and COF (0.221), are 3 wt.% filler loading, sliding velocity of 0.75 m/s, and an applied load of 60 N. Based on Signal to noise graph, confirmation test is conducted. Worn surface of the composites are analyzed utilizing scanning electron microscope. Damping behavior of the composites is analyzed from room temperature till 160 ˚C. As the filler content increased, storage modulus (E') and glass transition (Tg) temperature increased. 3 wt.%, nSiO2 filled composite showed higher E' of 18386 MPa and Tg of 87.3 C.

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Section: Introductionmentioning

confidence: 99%

Dynamic Mechanical Analysis and Optimization of Hybrid Carbon-Epoxy Composites Wear using Taguchi Method

Divya¹,

Somashekar²,

Jamadar³

2021

Tribol. Ind.

Self Cite

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“…Also, coefficient of friction of 0.024, 0.035, 0.038 and 0.017, 0.019 and 0.021 were obtained for: epoxy/30wt%MAf-20wt%BFSAp and epoxy/OH-APS treated 30wt%MAf-20wt%BFSAp composites respectively at the same applied load of: 10, 20 and 30N. The increases in coefficient friction with applied load could be attributed to the fact that when applied load increases, the pressure applied in the sample raise which leads to increase the friction of the materials [6,7]. The coefficient of friction rises from epoxy, followed by epoxy/30wt%MAf-20wt%BFSAp and epoxy/OH-APS treated 30wt%MAf-20wt%BFSAp composites respectively.…”

Section: Wear Resultsmentioning

confidence: 91%

“…Higher erosion resistance was obtained with Nano TiO2 addition. Suresha et al [6] determined the tribological and mechanical properties of 55wt% carbon fiber and 2.5 and 5wt% silicon carbide whiskers epoxy hybrid composites. The mechanical properties of the carbon fiber-epoxy composites were enhanced.…”

Section: Introductionmentioning

confidence: 99%

Wear Performance of Value-Addition Epoxy/Breadfruit Seed Shell Ash Particles and Functionalized Momordica Angustisepala Fiber Hybrid Composites

Ezechukwu¹,

Nwobi-Okoye²,

Atanmo³

et al. 2020

RCMA

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The numerical approach for the study of wear performance of breadfruit seed shell ash particles (BFSAp) and Sodium hydroxide (OH)/silane (APS)functionalized Momordica angustisepala fiber (MAf)/epoxy hybrid composites were investigated. The MAf fibers were treated with an OH-APS solution. Hardness values, wear rate and wear mechanism of the samples were determined. A 65.82% improvement in wear resistance was obtained at the load of 30N of 30wt%MAf-20wt%BFSAp composite. The wear rate and wear damage followed in this order: epoxy(matrix)˂epoxy/30wt%MAf-20wt%BFSAp˂epoxy/OH-APS treated 30wt%MAf-20wt%BFSAp composites. The wear mechanism observed in this work is a combination of abrasive and adhesive wear. High wear resistance was obtained in epoxy/OH-APS treated 30wt%MAf-20wt%BFSAp composites.

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“…The improvement in tensile strength was attributed to adhesion, which facilitated further transfer of tension by bonding between particle and PP. With homogeneous distribution and good bonding between the particle-matrix, the load can be transferred to the reinforcements which were present in the matrix (Suresha et al , 2018). Thus, the high strength additive can contribute to the tensile properties of the polymer.…”

Section: Resultsmentioning

confidence: 99%

Mechanical and tribological properties of waste iron scale reinforced polypropylene composite

Erdoğan

Gök

Kurşuncu

et al. 2020

ILT

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Purpose In this study, waste iron scale, which occurs in high amounts during steel production and contains high amounts of iron element, was used as a reinforcing material in the polypropylene (PP) matrix. Design/methodology/approach In the PP matrix, 33 micron-sized iron scale was added at 5%, 10%, 15% and 20% ratios. The composites were subjected to mechanical and dry sliding wear tests. The wear mechanisms occurring on the wear surfaces were determined by SEM supported by EDS. Tensile testing was performed using a tensile tester. Hardness tests were performed using a Shore-D hardness tester with ASTM-D-22 standards. Findings Composite reinforced with 5% iron scale showed the highest tensile strength. The addition of higher amounts of iron scale particles reduced the tensile strength of the composites compared to PP. Hardness increased from 58 to 64 Shore-D with the increase in scale content. The reinforcement of PP with iron scale increased the dry sliding wear resistance. Originality/value According to the authors’ knowledge, in the literature review, there was no study found on the effect of iron scale reinforcement on PP. Peer review The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-08-2020-0316/

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Mechanical and tribological behaviours of epoxy hybrid composites reinforced by carbon fibers and silicon carbide whiskers

Cited by 20 publications

References 19 publications

Dynamic Mechanical Analysis and Optimization of Hybrid Carbon-Epoxy Composites Wear using Taguchi Method

Dynamic Mechanical Analysis and Optimization of Hybrid Carbon-Epoxy Composites Wear using Taguchi Method

Wear Performance of Value-Addition Epoxy/Breadfruit Seed Shell Ash Particles and Functionalized Momordica Angustisepala Fiber Hybrid Composites

Mechanical and tribological properties of waste iron scale reinforced polypropylene composite

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