Synthesis and characterization of Cu–ZrO 2 nanocomposite produced by thermochemical process

Fathy, A.; Elkady, Omayma A.; Abu-Oqail, Ahmed

doi:10.1016/j.jallcom.2017.05.209

Cited by 79 publications

(28 citation statements)

References 39 publications

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“…Distinct parallel grooves and ridges running in the sliding direction are shown in the micrographs of figures 7(b), (c). [24,33,45].…”

Section: Worn Surface Inspection Resultsmentioning

confidence: 99%

“…Figure 3 shows the relation between the wear rate (or percentage) relative to the filler-free matrix material and the DSN weight percentage at different normal loads. Compared to the DSN-free PET matrix, we see that the wear (mass loss) rate is reduced to 80%, 15%, 6%, and 11% when the DSN material is added by weight fractions of 0.25, 0.5, 0.75 and 1 wt%, respectively [44,45].…”

Section: Wear Analysis Of Pet-dsn Compositesmentioning

confidence: 89%

“…This enlarged interface leads to enhanced mechanical properties of the PET-DSN composites. In particular, the wear resistance is improved since the nanofiller particles transmit friction and hence boost the nanocomposite load carrying capacity [45][46][47].…”

Section: Wear Analysis Of Pet-dsn Compositesmentioning

confidence: 99%

“…Moreover, the interfacial adhesion of the DSN material to PET helps the composite withstand the stress build-up. Specifically, nanofillers can fill the free space between polymer matrix chains, increase the intermolecular attraction force, and hence make the composite very dense and less permeable [40,45,47,48].…”

Section: Compressive Strength Analysismentioning

confidence: 99%

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Eco-friendly date-seed nanofillers for polyethylene terephthalate composite reinforcement

Elkhouly

Rushdi

Abdel-Magied

2020

Mater. Res. Express

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Polymer composites have been widely exploited in numerous industries. Micro-particle fillers are typically added as reinforcement materials to improve the characteristics of these composites. In this work, organic nanoparticles of date seeds were added as a filler for polyethylene terephthalate (PET) to produce enhanced polymer nanocomposites. A date-seed nanofiller (DSN) was prepared and examined with x-ray diffraction measurements, and then added to PET by hot compression. The characteristics of the PET-DSN composite were experimentally investigated through tests of mass loss, compressive strength, and Vickers micro-hardness. The PET-DSN microstructure was inspected using a scanning electron microscope and Fourier-transform infrared spectroscopy. The results show chemical stability of the PET-DSN composite. Moreover, key mechanical properties of the composite, namely hardness, compressive strength and wear resistance, were improved and optimized with a DSN reinforcement of 0.75 wt%.

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“…Distinct parallel grooves and ridges running in the sliding direction are shown in the micrographs of figures 7(b), (c). [24,33,45].…”

Section: Worn Surface Inspection Resultsmentioning

confidence: 99%

Section: Wear Analysis Of Pet-dsn Compositesmentioning

confidence: 89%

Section: Wear Analysis Of Pet-dsn Compositesmentioning

confidence: 99%

Section: Compressive Strength Analysismentioning

confidence: 99%

See 2 more Smart Citations

Eco-friendly date-seed nanofillers for polyethylene terephthalate composite reinforcement

Elkhouly

Rushdi

Abdel-Magied

2020

Mater. Res. Express

View full text Add to dashboard Cite

show abstract

“…The significant reduction in the abrasive wear rate of Cu-ZrO 2 nanocomposite is due to the incorporation of inert ZrO 2 nanoparticles in the pure copper matrix which led to reduction in the size of copper crystals and an improvement in microhardness of the nanocomposites. This latter is due to the combined effect of both grain-refinement and dispersionstrengthening, which results in considerable improvement in abrasion wear resistance of the Cu-ZrO 2 nanocomposites 36,37 . It can also be clearly seen in Figure 13d that the abrasive wear rate increases with the increase of sliding velocity.…”

Section: Characterization Of the Sintered Nanocompositesmentioning

confidence: 99%

Microstructure and Properties of Cu-ZrO2 Nanocomposites Synthesized by in Situ Processing

2017

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In situ chemical reaction method was used to synthesize Cu-ZrO 2 nanocomposite powders. The process was carried out by addition of NH 4 (OH) to certain amount of dispersed Cu(NO 3 ) 2 ·3H 2 O and ZrOCl 2 ·8H 2 O solution. Afterwards, a thermal treatment at 650 °C for 1 h was conducted to get the powders of CuO and ZrO 2 and remove the remaining liquid. The CuO was then reduced in preferential hydrogen atmosphere into copper. The powders were cold pressed at a pressure of 600 MPa and sintered in a hydrogen atmosphere at 950 °C for 2 h. The structure and characteristics were examined by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM). The results showed that the nanosized ZrO 2 particles (with a diameter of about 30-50 nm) was successfully formed and dispersed within the copper matrix. The density, electrical conductivity, mechanical strength measurements (compression strength and Vickers microhardness) and wear properties of Cu-ZrO 2 nanocomposite were investigated. Increment in the weight % of ZrO 2 nano-particles up to 10 wt.% in the samples, caused the reduction in the densification (7.2%) and electrical conductivity (53.8%) of the nanocomposites. The highest microhardness (146.5 HV) and compressive strength (474.5 MPa) of the nanocomposites is related to the Cu-10 wt.% ZrO 2 . Owing to the good interfacial bonding between uniformly dispersed ZrO 2 nanoparticles and the copper matrix. The abrasive wear rate of the Cu-ZrO 2 nanocomposite increased with the increasing load or sliding velocity and is always lower than that of copper at any load or any velocity.

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Improving compressibility and thermal properties of Al–Al2O3 nanocomposites using Mg particles

Wagih

Fathy

2018

J Mater Sci

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Synthesis and characterization of Cu–ZrO 2 nanocomposite produced by thermochemical process

Cited by 79 publications

References 39 publications

Eco-friendly date-seed nanofillers for polyethylene terephthalate composite reinforcement

Eco-friendly date-seed nanofillers for polyethylene terephthalate composite reinforcement

Microstructure and Properties of Cu-ZrO2 Nanocomposites Synthesized by in Situ Processing

Improving compressibility and thermal properties of Al–Al2O3 nanocomposites using Mg particles

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