Journal ArticleDOI
Effect of ball milling on graphene reinforced Al6061 composite fabricated by semi-solid sintering
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TLDR
In this paper, a 1.0-wt.% graphene reinforced aluminum 6061 (Al6061) composite was synthesized to investigate the effects of graphene dispersion by ball milling technique.Abstract:
A 1.0 wt.% graphene reinforced aluminum 6061 (Al6061) composite was synthesized to investigate the effects of graphene dispersion by ball milling technique. The Al6061 powder and graphene were ball milled at different milling times. The composites were then synthesized by hot compaction in the semi-solid regime of the Al6061. A three point bending test was performed to characterize the mechanical properties of the composite. The ball milled powder and the fracture surfaces of the composites were analyzed using the scanning electron microscopy. A maximum enhancement of 47% in flexural strength was observed when compared with the reference Al6061 processed at the same condition.read more
Citations
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Effect of Al2O3 particles on mechanical and tribological properties of Al–Mg dual-matrix nanocomposites
Mohamed A. Eltaher,Mohamed A. Eltaher,Ahmed Wagih,Ahmed Wagih,Ammar A. Melaibari,Adel Fathy,Gilles Lubineau +6 more
TL;DR: In this article, a project was funded by the research and development office (RDO) at the ministry of education, Kingdom of Saudi Arabia, No. Grant no. (HIQI-28-2019).
Journal ArticleDOI
Fabricating graphene-titanium composites by laser sintering PVA bonding graphene titanium coating: Microstructure and mechanical properties
Zengrong Hu,Zengrong Hu,Feng Chen,Xu Jiale,Ma Zhenwu,Guo Huafeng,Changjun Chen,Qiong Nian,Xiaonan Wang,Zhang Min +9 more
TL;DR: Graphene reinforced titanium (Ti-Gr) nanocomposite was prepared by laser sintering of the mixture of PVA bonding graphene sheets and titanium powders in this article.
Journal ArticleDOI
First Report on High Entropy Alloy Nanoparticle Decorated Graphene.
TL;DR: Potentiodynamic polarization and electrochemical impedance spectroscopy methods revealed that the HEA nanoparticle graphene composite possess excellent corrosion resistance properties which was better than the corrosion resistance exhibited by milled and exfoliated graphene.
Journal ArticleDOI
Selective Laser Melting of Graphene Reinforced Inconel 718 Superalloy: Evaluation of Microstructure and Tensile Performance
Journal ArticleDOI
Preparation and mechanical property of electrodeposited Al-graphene composite coating
TL;DR: In this article, an electrodeposition technique was used to improve the mechanical properties of the aluminum matrix by using graphene nanoplatelets (GNPs) distributed in aluminum matrix to improve hardness and antifriction properties significantly.
References
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Journal ArticleDOI
Interpretation of Raman spectra of disordered and amorphous carbon
Andrea C. Ferrari,John Robertson +1 more
TL;DR: In this paper, a model and theoretical understanding of the Raman spectra in disordered and amorphous carbon is given, and the nature of the G and D vibration modes in graphite is analyzed in terms of the resonant excitation of \ensuremath{\pi} states and the long-range polarizability of the long range bonding.
Book
Mechanical Alloying And Milling
TL;DR: Mechanical Alloying (MA) is a solid-state powder processng technique involving repeated welding, fracturing, and rewelding of powder particles in a high-energy ball mill as mentioned in this paper.
Journal ArticleDOI
Spatially Resolved Raman Spectroscopy of Single- and Few-Layer Graphene
D. Graf,F. Molitor,Klaus Ensslin,Christoph Stampfer,A. Jungen,Christofer Hierold,Ludger Wirtz +6 more
TL;DR: In this article, the authors used a scanning confocal approach to collect spectral data with spatial resolution, which allows them to directly compare Raman images with scanning force micrographs.
Journal ArticleDOI
Uniaxial strain in graphene by Raman spectroscopy: G peak splitting, Grüneisen parameters, and sample orientation
T. M. G. Mohiuddin,Antonio Lombardo,Rahul R. Nair,A. Bonetti,Giorgio Savini,Rashid Jalil,Nicola Bonini,Denis M. Basko,Costas Galiotis,Nicola Marzari,Kostya S. Novoselov,Andre K. Geim,Andrea C. Ferrari +12 more
TL;DR: In this paper, the constitutive relation of graphene and probe the physics of its optical phonons by studying its Raman spectrum as a function of uniaxial strain was uncovered.
Journal ArticleDOI
Measurements of near-ultimate strength for multiwalled carbon nanotubes and irradiation-induced crosslinking improvements.
Bei Peng,Mark A Locascio,Peter Zapol,Shuyou Li,Steven L. Mielke,George C. Schatz,Horacio D. Espinosa +6 more
TL;DR: Multiwalled carbon nanotubes with a mean fracture strength >100 GPa are reported, which exceeds earlier observations by a factor of approximately three and are in excellent agreement with quantum-mechanical estimates for nanot tubes containing only an occasional vacancy defect, and are approximately 80% of the values expected for defect-free tubes.