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Meeting 2018 TMS Annual Meeting & Exhibition
Symposium Thermo-mechanical Response of Materials with Special Emphasis on In-situ Techniques
Presentation Title Nanomechanical Properties of Graphene Oxide and Carbon Nanotube Scaffolds
Author(s) Sanjit Bhowmick, Chandra Sekhar Tiwary, Syed Asif, Pulickel Ajayan
On-Site Speaker (Planned) Sanjit Bhowmick
Abstract Scope Nanoengineered 3D materials manufactured from 2D graphene and 1D carbon nanotubes gained visibility in the recent past due to numerous novel applications, primarily in the two most challenges before mankind today, namely, environment and energy. This study focuses on understanding the variation in mechanical properties and deformation mechanism of such 3D materials as a function of temperature. An in-situ nanomechanical instrument, PI 87xR SEM PicoIndenter was used to conduct uniaxial compression of pillar samples that were FIB milled from 3D materials. Materials synthesized from graphene sheets showed completely elastic behavior and brittle fracture at RT. A considerable amount of plasticity was observed at higher temperature. In contrast, carbon nanotube-based bulk materials showed strain softening in loading and significant recovery during unloading both at RT and elevated temperatures.
Proceedings Inclusion? Planned: Supplemental Proceedings volume

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

An Analysis of Thermo-mechanical Fatigue Crack Growth in the Titanium Alloy Ti-6246
Analysis of Longitudinal Twinning in γ-TiAl by Micropillar Compression up to 700 C with Strain and Crystal Orientation Mapping
Combinatorial In Situ Micromechanics of the Al-Cu System at Low Temperatures
Deformation Mechanisms of Cu/Nb Nanoscale Metallic Multilayers as a Function of Temperature and Layer Thickness
Deformation of Monatomic Metallic Glasses Processed through In-situ Ultrafast Liquid Quenching
Design and Fabrication of MEMS-based Symmetric Structure for In-situ Nanomechanical Tensile Experiments
Developing Thermo-mechanical Fatigue Crack Growth Techniques
Emergence and Progression of Abnormal Grain Growth in Minimally Strained Nickel-200
Experimental Techniques to Asses Long Range Internal Stresses in Plastically Deformed Crystalline Solids
High-resolution Digital Image Correlation: Advances in Quantifying the Strain Distribution at the Submicron–scale in Hexagonal Materials
High throughput Study of Underlying Mechanisms of Serrated Flow in Nickel-based Diffusion Multiple via High Temperature Nanoindentation
In-situ Deformation and Characterisation of Carbon Controlled Steels
In-situ ECCI Characterization of Microstructural Defects and their Effect on Superconducting Properties of SRF Cavity Niobium
In Situ Observation on Temperature Dependence of Martensitic Transformation and Plastic Deformation in Superelastic NiTi Alloy
In Situ TEM Imaging and Quantitative Orientation Mapping of the Structural Evolution in Nanocrystalline Metals during Mechanical Deformation
Investigating Irradiation Creep by In Situ TEM
Local Dislocation Configurations and their Contribution to Early Stage Globularization in Alpha Beta Titanium Alloys
Mechanical Behavior of Stainless Steel 709 through In-situ Synchrotron Diffraction
Mechanics of Irradiated Alloys Studied through In Situ TEM Testing
Metals under High-pressure, High Temperature and during Plastic Deformation: In-situ Studies of Thermo-mechanical Response by Neutron and Synchrotron Quantum Beams
Nanomechanical Properties of Graphene Oxide and Carbon Nanotube Scaffolds
Order-disorder Transition in 18-carat Gold Studied by In Situ X-ray Scattering
Phase Transformation during Thermal Treatment of Medium Mn Steels Studied by In-situ Synchrotron Experiments and Thermodynamic Modeling
Predicting Bulk Mechanical Properties of Ferritic-martensitic Steel Using In-situ TEM Tensile Experiments and Crystal Plasticity Modeling
Rationalization of Heterogeneous Creep Deformation Behavior of Dissimilar Metal Welds
Real Time 3-D X-ray Computed Micro-tomography Study of the Strength and Toughness of Nuclear Graphite between 25° and 1000°C
Size Effects in Ion-irradiated 800H Steel at High Temperatures Utilizing Microcompression Testing
Studying Tensile Properties of Silicon via In-situ Microcompression Testing of Push-to-pull Pillar
Studying the Micromechanics of Martensitic Phase Transformatons Using High Energy Diffraction Microscopy
The Effect of Strain Rate on the Tensile Properties of Single Crystal Ni – an In Situ Study
“In Situ” Measurement of Electrical Resistivity, Dilatometry and Thermal Analyses of Cast Iron

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