Journal ArticleDOI
Graphite Nanoplatelet−Epoxy Composite Thermal Interface Materials
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TLDR
In this article, the performance of a few graphene layer n ∼ 4, with a thickness of ∼ 2 nm, was investigated for epoxy composites and it was shown that the G4 GNPs provide a thermal conductivity enhancement of more than 3000% (loading of ∼25 vol %).Abstract:
Natural graphite was intercalated, thermally exfoliated, and dispersed in acetone to prepare graphite nanoplatelets (GNPs, Gn) of controlled aspect ratio. Thermal conductivity measurements indicate that few graphene layer Gn, where n ∼ 4, with a thickness of ∼2 nm function as a very efficient filler for epoxy composites. When embedded in an epoxy matrix, the G4 GNPs provide a thermal conductivity enhancement of more than 3000% (loading of ∼25 vol %), and a thermal conductivity κ = 6.44 W/mK, which surpasses the performance of conventional fillers that require a loading of ∼70 vol % to achieve these values. We attribute the outstanding thermal properties of this material to a favorable combination of the high aspect ratio, two-dimensional geometry, stiffness, and low thermal interface resistance of the GNPs.read more
Citations
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Advances in graphene-based polymer composites with high thermal conductivity
Yapeng Chen,Jingyao Gao,Qingwei Yan,Xiao Hou,Shengcheng Shu,Mingliang Wu,Nan Jiang,Xinming Li,Jianbin Xu,Cheng-Te Lin,Jinhong Yu,Bahareh Yazdani Damavandi,Cesar Mendoza,Asif Tahir +13 more
TL;DR: In this article, a critical review on the recent advances in graphene-based composites with high thermal conductivity is presented, along with detailed examples from the scientific literature and guidance are provided on the fabrication of composites having high thermalconductivity.
Journal ArticleDOI
Anisotropic Electrical Transport Properties of Graphene Nanoplatelets/Pyrene Composites by Electric-Field-Assisted Thermal Annealing
TL;DR: In this article, a pyrene derivative compound (1,3,6,8-tetrakis(4-t-butylphenyl)pyrene (TBPP)) in tetrahydrofuran as solvent medium is investigated.
Journal ArticleDOI
Effect of Graphene Nanoplatelets on Microstructure and Mechanical Properties of AlSi10Mg Nanocomposites Produced by Hot Extrusion
Abdollah Saboori,Riccardo Casati,A. Zanatta,Matteo Pavese,Claudio Francesco Badini,Maurizio Vedani +5 more
TL;DR: In this paper, the effect of graphene nanoplatelets on microstructure and mechanical properties of the AlSi10Mg alloy was investigated and it was shown that the high quantity of GNP (>0.5 wt.%) deteriorates the mechanical properties due to the agglomeration of GNPs and the introduction of internal porosity in the composite.
Journal ArticleDOI
Solvent-free encapsulation of curing agents for high performing one-component epoxy adhesives
TL;DR: In this paper, core-shell structured curing agents were prepared via a dry particle coating (DPC) process that improved the storage stability of one-component epoxy adhesives.
Journal ArticleDOI
Experimental Investigation of Heat Transfer Enhancement of Shell and Tube Heat Exchanger Using SnO2-Water and Ag-Water Nanofluids
TL;DR: In this paper, the performance of the shell and tube heat exchanger operated with tin nanoparticles-water (SnO2-W) and silver nanoparticleswater (Ag-W), was experimentally analyzed.
References
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Journal ArticleDOI
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Journal ArticleDOI
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TL;DR: The bottom-up chemical approach of tuning the graphene sheet properties provides a path to a broad new class of graphene-based materials and their use in a variety of applications.
Journal ArticleDOI
Experimental observation of the quantum Hall effect and Berry's phase in graphene
TL;DR: In this paper, an experimental investigation of magneto-transport in a high-mobility single layer of Graphene is presented, where an unusual half-integer quantum Hall effect for both electron and hole carriers in graphene is observed.
Journal Article
Experimental Observation of Quantum Hall Effect and Berry's Phase in Graphene
TL;DR: An experimental investigation of magneto-transport in a high-mobility single layer of graphene observes an unusual half-integer quantum Hall effect for both electron and hole carriers in graphene.
Journal ArticleDOI
Electronic Confinement and Coherence in Patterned Epitaxial Graphene
Claire Berger,Claire Berger,Zhimin Song,Xuebin Li,Xiaosong Wu,Nate Brown,Cécile Naud,Didier Mayou,Tianbo Li,J. Hass,Alexei Marchenkov,Edward H. Conrad,Phillip N. First,Walt A. de Heer,Walt A. de Heer +14 more
TL;DR: In this paper, a single epitaxial graphene layer at the silicon carbide interface is shown to reveal the Dirac nature of the charge carriers, and all-graphene electronically coherent devices and device architectures are envisaged.