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Meeting 2016 TMS Annual Meeting & Exhibition
Symposium Metal and Polymer Matrix Composites II
Presentation Title Effect of Defects on the Intrinsic Strength and Stiffness of Graphene
Author(s) Nikhil Koratkar
On-Site Speaker (Planned) Nikhil Koratkar
Abstract Scope It is important from a fundamental standpoint and for practical applications to understand how the mechanical properties of graphene are influenced by defects. Here we report that the two-dimensional elastic modulus of graphene is maintained even at a high density of sp3-type defects. Moreover, the breaking strength of defective graphene is only ~14% smaller than its pristine counterpart in the sp3-defect regime. By contrast, we report a significant drop in the mechanical properties of graphene in the vacancy-defect regime. We also provide a mapping between the Raman-spectra of defective graphene and its mechanical properties. This provides a simple, yet non-destructive methodology to identify graphene samples that are still mechanically functional. By establishing a relationship between the type and density of defects and the mechanical properties of graphene, this work provides important basic information for the rational design of composites and other systems utilizing the high modulus and strength of graphene.
Proceedings Inclusion? Planned: A print-only volume


A Novel Manufacturing Approach to Fabricate Near-Net Shape Femoral Head ZrO2-toughened-Al2O3
Characterization of Damage Evolution in SiC Particle Reinforced Al Matrix Composites by X-ray Tomography and Extended Finite Element Modeling
Degradation Study of High Melt Strength Polypropylene/Clay Nanocomposites in Environmental and Accelerated Conditions
Development of a Composite Material Filament for Lightweight 3D Printed Components
Development of a High-strength, Precipitation-strengthened Matrix for Non-quenchable Aluminum Metal Matrix Composites
Effect of Defects on the Intrinsic Strength and Stiffness of Graphene
Effect of Mushy State Rolling on Microstructure, Micro Hardness and Microtexture in Al-4.5Cu-5TiB2 In-situ Composite
Effect of Nano-particle Addition on Grain Structure Evolution of Friction Stir Processed Al 6061 during Post-weld Annealing
Effect of Spatial Distribution of Borosilicate Particles in Polypropylene Matrix Composites Using X-Ray Microtomography
Emerging Environment Friendly Magnesium Based Composite Technology for Present and Future Generations
Engineered Functional Metal Matrix Composite; Lamellar Structure or Shape Memory Alloy in a Hybrid Self-Healing Composite Materials
Enhanced Ductility with Significant Increase in Strength of As-Cast CNTs/AZ91D Nanocomposites
Evaluation of Intermetallic Reaction Layer Formation within Steel Encapsulated Metal Matrix Composites
Filler Surface Nature, Bead, Solution Viscosity and Fibre Diameter of Electrospun Particle-reinforced Poly Lactide
Forming of Open Cell Aluminum Foams at High Temperatures
Hollow Fly Ash Composite Foams – Thermal and Mechanical Properties
Interfacial Bonding Effect on the Strength of Nanocomposites
Laser Processing of Hybrid Materials for Biomedical Applications
Laser Pulse Heating of Carbon Nanotube Composites
Matrix Tailoring by Mn Addition in In-situ Liquid Metallurgy Synthesized Fe-TiB2 High Modulus Steels
Mechanical Properties of Amorphous Metallic Alloys at High Strain Rate
Mechanical Properties of Mechanically Alloyed Nano-Scale Reinforced Al-SiC Metal Matrix Composites
Molten Salt Assisted Incorporation of High Volume Fraction Nanoparticles during Solidification Nanoprocessing of Light Metal Matrix Nanocomposites
Multifunctional Polymer Matrix Nanocomposites toward Microwave Absorption
Nanoparticle Assisted Processing for Immiscible Alloys
Nanotube Sheet - Graphite Hybrid Nanocomposite for Damage Detection
Physical and Mechanical Properties of LoVAR: A New Lightweight Particle-reinforced Fe-36Ni Alloy
Polymer to Ceramic Transformation of Polysilazane Wrapped Nanotubes and their Applications in Energy-Based Devices
Polytetrafluoroethylene-based Composites Containing Graphene Nanoplatelets Fabricated via Solid-state Mixing and Hot-pressing
Processing and Properties of Amorphous Alloy Matrix Nanocomposites
Progresses in Light Metal Multiscale Composites by Cryogenic Nanostructuring
Pulsed Electrodeposited Ni-W-SiC Nano Composite Coatings as an Alternative for Hard Chrome Coatings
R-1: Fracture Behavior of Ni-graphene Nanocomposites under Mode I Loading
R-3: Natural Aging Effects in HMS-Polypropylene Synthesized by Gamma Radiation in Acetylene Atmosphere
R-4: Reinforcing Efficiency of CNTs in Transition Metal Matrix Composites to Improve Mechanical Properties with Superior Interface
R-5: Study of Carbon Dioxide Adsorption/Desorption on Fluorelastomer/Multi Walled Carbon Nanotubes Nanocomposites
R-6: Super Aligned Carbon Nanotubes Reinforced Copper Nanocomposites with Enhanced Strength and Electric Conductivity
R-7: Fabrication of Gamma-irradiated Polypropylene and AgNPs Nanocomposite Films and their Antimicrobial Activity
Reinforcing 440B Stainless Steels by In Situ Synthesized Niobium Carbides
Self-Lubricating Aluminum Matrix Nanocomposites Reinforced by Graphene Nanoplatelets
Silver Nanowire/ Polylactide Nanocomposite Conducting Films
Simulation of Ultrasonic Processing to Fabricate Carbon Nanotube-reinforced Magnesium Composite
Super-strong Light Metals by Populous Dispersed Nano-elements
Surface Characterization of Carbon Fiber Polymer Composites and Aluminum Alloys after Laser Interference Structuring
The Corrosion of 30% Mo-ZrO2 Cerment about Molten Slag of CaO-MgO-Al2O3
The Role of Titania Surface on the Degradation Behavior of LLDPE Composites
The Synthesis and Processing Self-Healing Structural Al/Mg Lamellar Composite Materials
Toughening of Aluminum Matrix Nanocomposites via Spatial Arrays of B4C Spherical Nanoparticles
Two Step Ultrasonic Casting— A Novel Method for Achieving Uniform Distribution of Nano-Dispersoids in Bulk Nanocomposite
Ultralight Metal Based Composite Materials: Design Principles and Multifunctionality

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