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Meeting MS&T22: Materials Science & Technology
Symposium Controlled Synthesis, Processing, and Applications of Structural and Functional Nanomaterials
Presentation Title Eliminating Artifactural Indentation Size Effects in Nanoindentation of Hard Ceramics
Author(s) James A. Wollmershauser, Boris Feigelson, John Drazin, Edward Gorzkowski, Heonjune Ryou
On-Site Speaker (Planned) James A. Wollmershauser
Abstract Scope Hardness is a ubiquitous characterization tool to measure the worth of ceramics and with the advent of instrumented indentation, use has only increased. However, instrumented indentation, primarily nanoindentation, measures hardness differently than classical methods such as Vickers or Knoop hardness and instrumented indentation habitually provides an inflated hardness value. These inflated hardness values often inversely correlate with indentation depth and the effect is most commonly referred to as indentation size effect (ISE). Oliver & Pharr’s 2004 work refines instrumented indentation calibration and analysis methods, and we show that ISE can be eliminated in fully dense hard ceramics when utilizing their approach. Using magnesium aluminate spinel ceramic samples with grain sizes ranging from ~20 nanometers to ~20 micrometers, we prove that ISE is negligent for contact depths from 20 nanometers to 1 micron. Such an implementation and analysis is critical when determining hardness values for new materials, including superhard and nanomaterials.

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

An Axially Continuous Graphene-Copper Wire for Multifunctional Applications
Bioceramic Cellular Solids: Structure, Mechanics, and Formation
Building Better Lithium-ion Battery Anodes with Enhanced Capability and Cycling Efficiency Using MoSe2/SiOC Freestanding Structure
Computation-aided Developments of Highly Durable and Active Photoanodes and Electrocatalysts
Controlled Synthesis of Robust Reusable Nanostructures for Thermal Management and Energy Efficiency
Designing Atomically Precise Nanocatalysts for CO2 Electrochemical Reduction
Dopamine Assisted Phase Transformation and Electrochemical Charge Storage Properties of Vanadium Oxide/Carbon Composite Electrodes
Effect of Strain on the Thermoelectric Properties of Epitaxial La0.8Sr0.2CoO3 Thin Films
Eliminating Artifactural Indentation Size Effects in Nanoindentation of Hard Ceramics
Enhancing the Low-temperature Consolidation of Nanosilver Materials
Exciton Physics at the Atomic Scale
Ferroelectricity in Hf0.5Zr0.5O2 Films – Processing Options to Achieve Better Ferroelectric Performance
Fundamental Understanding of Defect Evolution in Two-dimensional Phosphorus Under Ion Irradiation
H-10: Synthesis of Nanoscale Layered Oxides for Charge Storage Applications
H-11: The Synaptic Devices Based on Ferroelectric Hf0.7Zr0.3O2 Thin Film
H-6: Carbon Fiber-reinforced CMCs for Ultra-high Temperature Applications
H-7: Electrodeposition of MnO2 Nanosheet Networks for Charge Storage
H-8: Fast Microwave-assisted Synthesis of Nanosctructured High Entropy Spinel
H-9: Lithium Storage Capacity of Carbon-rich Polymer-derived Ceramic Electrodes
Inquiry of SiOC Structural Evolution via Synchrotron X-ray and Reactive Force Field Simulation
Manipulating Material Synthesis Using Electromagnetic Fields
Mechanistic Investigation of the Formation of Transition Metal Nanocrystallites Embedded in Amorphous Silicon Nitride Nanocomposites
Molten Salt Synthesis of Inorganic Nanomaterials
Nanomechanical Behavior of Nanocrystalline Spinel at Elevated Temperature
Near-field Imaging of 2D-heterostructures: Portraying Optical Nonuniformity at the Nanoscale
Non-hydrolytic Sol-gel Chemistry to Functional Hybrid Materials
Novel Carbyne Based Materials for Gas Sensing: Fabrication and Characterization
Optimizing Magnetostriction Coefficients in (FeGa)B Nanocrystalline Alloys
Out-of-oven Rapid Fabrication of Entropy Stabilized Oxides Patterned on Carbonaceous Nanomaterials Using Radio Frequency Heating
Plateau-Rayleigh Instability with a Grain Boundary Twist
Quantifying the Electrode Clamping Effect and Its Role on Phase Stability in Ferroelectric Hafnium Zirconium Oxide
Reduced Pressure Nanosintering during Environmentally-Controlled Pressure-Assisted Sintering
Role of Pre-Intercalation on the Electrochemical Performance of Ti3C2Tx MXene in Aqueous and Room Temperature Ionic Liquid Electrolyte (RTIL) Supercapacitors and in Sodium Ion Capacitors
Safer Etching of Ti3AlC2 MAX Phases to Directly Yield Ti3C2Tz MXene Nanosheets Using Quarternary Ammonium Fluorides
Scalable Synthesis of Titanium Carbo-oxides Nanofilaments and 2D Flakes, Their Properties, and Potential Applications
Structural and Magnetic Properties of Fe-Ga-Zr Nanocrystalline Alloys
Synthesis and Characterization of Copper Nanowire Array
Synthesis and Growth Mechanism Study of Metalloid Nanostructures
Synthesis of Functional Semiconducting Metal-sulfide Materials by Molecular Building Blocks
Synthesis of Nanolamellar Ultra-high Temperature Carbides by High-temperature Phase Transformation of 2D MXenes
Synthesis of Solid-Solution MXenes with Tunable Electronic, Optical, and Electrochemical Properties
Synthesis of the Titanium Carbonitride MXenes and their Applications in Energy Storage
Synthesis of WO3-AgCl Thin Films for Application in Continuous Photocatalytic Microreactor
The Many Faces of “Free” Carbon in Polymer-Derived Ceramics
Thermo-Chemical Reduction Controlled Exsolution of Metal Nanoparticles (NPs) From Perovskite Lattice: Synthesis to Application
Towards the Synthesis of Semiconducting Materials for Photo(electro)catalysis in Energy Conversion: CO2 Reduction and CH4 Controlled Oxidation
Transition Metal Carbo-Chalcogenide “TMCC” a New Family of Two-dimensional Materials
Using a Reactive Hydrogen Atmosphere to attain Polymer-Derived SiCN ceramics
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