Studying the microstructure, electrical, and electrochemical behaviour of the Cu-10WC/x GNs for electrochemical machining electrode and energy application

Yehia, Hossam M.; Nouh, Fathei; Kady, Omayma A. El; Elaziem, Walaa Abd; Elsayed, E. M.

doi:10.1504/ijmmm.2022.128461

Cited by 5 publications

(4 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Besides graphene's extraordinary electrical, optical, mechanical, and thermal properties, excellent electrical and thermal conductivity and noticeable light absorption are the most critical characteristics. 26,85 Graphene was discovered in 2004 by A. K. Geim and Novoselov 86 and is classied as a 2D material with the thinnest structure and very high surface area. Graphene consists of sp 2 carbon-bonded atoms with a honeycomb lattice.…”

Section: Carbon-based Nanomaterials (Nms)mentioning

confidence: 99%

“…21,22 At this scale, materials oen exhibit distinctive properties, including quantum effects and increased surface area, which can signicantly differ from those observed in bulk materials. 23,24 This is because materials have an extremely high surface area-to-volume ratio [25][26][27] when structured or manipulated at the nanoscale. With a much greater proportion of atoms on material surfaces rather than the bulk interior, nanostructured variants display different optic, electronic, magnetic, mechanical, thermal, and chemical behaviors.…”

Section: Denition and Propertiesmentioning

confidence: 99%

See 1 more Smart Citation

Advancements in nanomaterials for nanosensors: a comprehensive review

Darwish,

Abd-Elaziem,

Elsheikh

et al. 2024

Nanoscale Adv.

View full text Add to dashboard Cite

show abstract

Section: Carbon-based Nanomaterials (Nms)mentioning

confidence: 99%

Section: Denition and Propertiesmentioning

confidence: 99%

Advancements in nanomaterials for nanosensors: a comprehensive review

Darwish,

Abd-Elaziem,

Elsheikh

et al. 2024

Nanoscale Adv.

View full text Add to dashboard Cite

show abstract

“…The combination of more than one alloying element produces material with different properties associated with each component, and this can be achieved by different methods such as casting, extrusion, and powder metallurgy. The process of powder metallurgy is the best technique that can be used to manufacture composites with homogeneous microstructure and unique physical, mechanical, and corrosion properties ( Hossam et al, 2022 ; Hossam et al, 2023a ; Hossam et al, 2023b ) .…”

Section: Introductionmentioning

confidence: 99%

Fabrication and characterization of Ti–12Mo/xAl2O3 bio-inert composite for dental prosthetic applications

Yehia,

El-Tantawy,

Elkady

et al. 2024

Front. Bioeng. Biotechnol.

View full text Add to dashboard Cite

Introduction: Titanium (Ti)-molybdenum(Mo) composites reinforced with ceramic nanoparticles have recently significant interest among researchers as a new type of bio-inert material used for dental prosthetic applications due to its biocompatibility, outstanding physical, mechanical and corrosion properties. The current work investigates the impact of alumina (Al2O3) nanoparticles on the properties of the Ti–12Mo composite, including microstructure, density, hardness, wear resistance, and electrochemical behavior.Methods: Ti–12Mo/xAl2O3 nanocomposites reinforced with different Al2O3 nanoparticles content were prepared. The composition of each sample was adjusted through the mechanical milling of the elemental constituents of the sample for 24 h under an argon atmosphere. The produced nanocomposite powders were then cold-pressed at 600 MPa and sintered at different temperatures (1,350°C, 1,450°C, and 1,500°C) for 90 min. Based on density measurements using the Archimedes method, the most suitable sintering temperature was found to be 1,450°C. The morphology and chemical composition of the milled and sintered composites were analyzed using back-scattering scanning electron microscopy (SEM) and X-ray diffraction (XRD).Results and Discussion: The results showed that the addition of Mo increased the Ti density from 99.11% to 99.46%, while the incorporation of 15wt% Al2O3 in the Ti–12Mo composite decreased the density to 97.28%. Furthermore, the Vickers hardness and wear behavior of the Ti–Mo composite were enhanced with the addition of up to 5 wt% Al2O3. The sample contains 5 wt% Al2O3 exhibited a Vickers hardness of 593.4 HV, compared to 320 HV for pure Ti, and demonstrated the lowest wear rate of 0.0367 mg/min, compared to 0.307 mg/min for pure Ti. Electrochemical investigations revealed that the sintered Ti–12Mo/xAl2O3 nanocomposites displayed higher corrosion resistance against a simulated artificial saliva (AS) solution than pure Ti. The concentrations of Ti, Mo, and Al ions released from the Ti–12Mo/xAl2O3 nanocomposites in the AS solution were within the safe levels. It was found from this study that; the sample of the composition Ti–12Mo/5wt%Al2O3 exhibited appropriate mechanical properties, biocompatibility, corrosion resistance against the AS solution with acceptable ion concentration released in the biological fluids. Therefore, it can be considered as a new bio-inert material for potential applications in dental prosthetics.

show abstract

“…Compared to copper, the cost of noble metals is very high. Therefore, due to its low cost and high conductivity, copper is highly preferred for producing highly conductive Cu patterns on a plastic substrate through inkjet printing [5,6].…”

Section: Introductionmentioning

confidence: 99%

Manufacturing of Aluminum Nano-Composites Reinforced with Nano-Copper and High Graphene Ratios Using Hot Pressing Technique

Yehia,

Elmetwally,

Elhabak

et al. 2023

Materials

View full text Add to dashboard Cite

In this study, the nano-aluminum powder was reinforced with a hybrid of copper and graphene nanoplatelets (GNPs). The ratios of GNPs were 0 wt%, 0.4 wt%, 0.6 wt%, 1.2 wt% and 1.8 wt%. To avoid the reaction between aluminum and graphene and, consequently, the formation of aluminum carbide, the GNP was first metalized with 5 wt% Ag and then coated with the predetermined 15 wt% Cu by the electroless coating process. In addition, the coating process was performed to improve the poor wettability between metal and ceramic. The Al/(GNPs-Ag)Cu nanocomposites with a high relative density of 99.9% were successfully prepared by the powder hot-pressing techniques. The effects of (GNPs/Ag) and Cu on the microstructure, density, hardness, and compressive strength of the Al-Cu nanocomposite were studied. As a result of agitating the GNPs during the cleaning and silver and Cu-plating, a homogeneous distribution was achieved. Some layers formed nano-tubes. The Al4C3 phase was not detected due to coating GNPs with Cu. The Cu9Al4 intermetallic was formed during the sintering process. The homogeneous dispersion of Cu and different ratios of GNs, good adhesion, and the formation of the new Cu9Al4 intermetallic improved in hardness. The pure aluminum sample recorded 216.2 HV, whereas Al/Cu reinforced with 1.8 GNs recorded 328.42 HV with a 51.9% increment. The compressive stress of graphene samples was improved upon increasing the GNPs contents. The Al-Cu/1.8 GNs sample recorded 266.99 MPa.

show abstract

Studying the microstructure, electrical, and electrochemical behaviour of the Cu-10WC/x GNs for electrochemical machining electrode and energy application

Cited by 5 publications

References 0 publications

Advancements in nanomaterials for nanosensors: a comprehensive review

Advancements in nanomaterials for nanosensors: a comprehensive review

Fabrication and characterization of Ti–12Mo/xAl2O3 bio-inert composite for dental prosthetic applications

Manufacturing of Aluminum Nano-Composites Reinforced with Nano-Copper and High Graphene Ratios Using Hot Pressing Technique

Contact Info

Product

Resources

About