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Meeting MS&T24: Materials Science & Technology
Symposium High Entropy Materials: Concentrated Solid Solutions, Intermetallics, Ceramics, Functional Materials and Beyond V
Presentation Title E-9: Exploring the Sintering of Ni-Pt-Pd HEA-Nanoparticles through In-Situ TEM
Author(s) Daniela P. M. Fonseca, Ricardo H. R. Castro, Martin P. Harmer
On-Site Speaker (Planned) Daniela P. M. Fonseca
Abstract Scope The chemical synthesis of high-entropy alloy nanoparticles (HEA-NPs) retains the benefits of bulk HEAs while offering higher surface energy. This research focused on the sintering of Ni-Pt-Pd HEA-NPs synthesized by Fast Moving Bed Pyrolysis (FMBP), a method that produces contaminant-free, homogeneously distributed chemical elements and highly dispersed HEA-NPs. Our study employed in-situ Transmission Electron Microscopy (TEM) using a Protochips Fusion Select holder on a JEOL 2100, as well as ex-situ analysis using a JEOL ARM 200CF, Energy-Dispersive X-ray Spectroscopy (EDS) mapping, and X-Ray Diffraction. The results from both in-situ and ex-situ analyses demonstrated the sintering behavior and structural evolution of Ni-Pt-Pd HEA-NPs over time and temperature.

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A Phase-field Study of CuO Precipitate Morphology in Epitaxial High-Entropy Oxide Films
Ab Initio Modeling on The Thermodynamic and Temperature-Dependent Elastic Properties of Subsystems of The FCC FeNiCoCr Medium Entropy Alloys (MEAs)
Additive Manufacturing Feasibility of Refractory High Entropy Alloys
Advancements in Interatomic Potential Development for High Entropy Materials
Anisotropic Co-Deformation Behavior of Nanolamellar Structures in Additively Manufactured Eutectic High Entropy Alloys
Applications of Nanoindentation in High-/Medium-Entropy Alloys R&D
Autonomous Research and Development of High-Entropy and Complex, Concentrated Alloys
Can Short Range Order be Used as a 'Design Knob' for High Entropy Alloys?
Capturing Physics-Driven Differences in Optimized High Entropy Alloys via Informatics
Chemical Disorder in Fe2VAl1-xSix and Its Effect on the Thermoelectric Properties
Composition Design of Refractory High-Entropy Alloys with Machine Learning Models
Compositionally Complex Lightweight Refractory Alloys Designed to Exhibit Ductility
Controlling Factors of Vacancy Formation Energies in FCC Concentrated Alloys from DFT Calculations
Controlling the Deformation Behavior of AlCoCrFeNi High-Entropy Alloy Additively Manufactured via Binder Jetting
Coupling Self-Stabilization and Solute Grain Boundary Segregation Effects for Ultra-Stable Nanocrystalline High Entropy Alloy Design
Data Driving Design of High-Entropy Alloys for Lightweight and Dynamic Applications
E-7: A Superb Mechanical Behavior of Newly Developed Lightweight and Ductile Al0.5Ti2Nb1Zr1Wx Refractory High Entropy Alloy via Nanoprecipitates and Dislocations Induced-Deformation
E-8: Effect of the Injection Mould Temperature on the Mechanical Properties of Recyclable PC-PS-PMMA-PET High-Entropy Polymer Blends
E-9: Exploring the Sintering of Ni-Pt-Pd HEA-Nanoparticles through In-Situ TEM
Effect of Nb on the Superconducting Properties of Mo-Ti-V-Based RCCAs
Elastic Properties as a Function of Temperature of AlMoNbV, NbTaTiV, NbTaTiZr, AlNbTaTiV, HfNbTaTiZr, and MoNbTaVW RHEAs from First-Principles Calculations
Evaluating Microstructure and Strength Properties of a Tungsten Based 4-Component Multi Principal Element Alloy Fabricated by Laser Based Directed Energy Deposition
Examining the Influence of Chemical Inhomogeneity in Modelling Plasticity and Fracture in Complex Concentrated Alloys
Exploration and Characterization of Refractory Compositionally Complex Rare Earth Garnets
Exploring Microstructural Evolution from Mesocrystal to Cube-Plate Dual Morphologies: Impact of Lattice Misfit and Elastic Moduli Variation during Spinodal Decomposition in Refractory HEAs
Exploring the Potential of High Entropy Alloys for Superior Mechanical Properties
Fabrication of Powdered Ti-V-Zr-Nb-Mo-Hf-Ta-W Refractory High-Entropy Alloys by Plasma-Assisted Centrifugal Atomization
First-Principles Study of Oxygen Adsorption, Absorption and Diffusion in FeCrNi Medium Entropy Alloy
Flash Sintering Improves the Mechanical Strength of High Entropy Oxides
From High-Entropy Ceramics (HECs) to Compositionally Complex Ceramics (CCCs)
Grain Boundary Dynamics in High Entropy Alloys
Heterostructured High Entropy Alloys: An Overview
High Entropy Materials and NSF
High Strength-Ductility Combination in Low-Density Dual Phase High Entropy Alloy
High Throughput Characterization of Multi-Principal Element Alloy Electrochemical Properties Using Thin Film Alloy Libraries
Influence of Co, Cr, and Ni Alloying Elements on the Microstructural, Oxidation and Mechanical behavior of NbTi-Based Alloys
Interaction between Dislocation and Grain Boundary in Nanoindentation of Polycrystalline Al0.3CoCrFeNi Alloy
Investigation on Superplastic Behavior of L21 Precipitate-Strengthened Al-Cr-Fe-Ni-Ti High Entropy Alloy
Large Language Model-assisted Intuitive Materials Design
Laser Directed Energy Deposition of NiCoCr Medium Entropy Alloy
Mechanical Properties and Structural Relaxation Upon Heating of Nanostructured High-Entropy Alloys
Mediating Plasticity in High-Entropy Alloys with High Stacking -Fault Energy via Nanotwins/9R under Extreme Conditions
Microstructural Evolution of Refractory Alloys During Thermomechanical Processing
Microwave Plasma as a Means to Create High Entropy Materials
Mining Lattice Distortion, Strength, and Intrinsic Ductility of Refractory High-Entropy Alloys Using Physics-Informed Statistical Learning
MPEA Filler Design Enabling New Opportunities for Similar and Dissimilar Joining
New Insight into the Disordering Mechanism in Fluorite-Related Ceramics
Non-Equiatomic High-Entropy Refractory Alloys with High Ductility: Hafnium vs. Titanium in Nb-Ta-Based Solutions
On the Mesoscale-Complexity of Macroscopically-Smooth Plastic Flow in an Al-Containing High-Entropy Alloy
Optimization of Cold-Rolling and Annealing Process to Achieve Ductile Refractory High Entropy Alloys with High Strength
Optimizing Hardness of High-Entropy Boride Thin Films by Modulating the Bipolar HiPIMS Kick-Pulse
Oxygen Vacancy Formation Energetics in MgO-Based High Entropy Oxides from DFT and Experimental Validation
Phase Transformation and Deformation Behavior in a B2-Base High-Entropy Alloy
Predicting Coefficient of Thermal Expansion and Temperature-Dependent Elastic Properties of High Entropy Alloys
Predicting Yield Strength of Multi-Principal Element Alloys from Density Functional Theory Calculations
Probing Phase Stability in CrMoNbV Using Atomistic Simulations, CALPHAD Calculations and Experiments
Process Optimization of Spark Plasma Sintered Ti20Al20Cr5Nb5Ni17Cu16Co17 High Entropy Alloy Using Response Surface Methodology
Processing of Cantor Derived (Co-Fe-Ni-Mn) Multi-Principal Element Alloys by Solid State Reduction of Oxides
Processing of Refractory and Refractory Multi-Principal Element Alloys
Revealing Dislocation Activity in Single-Phase (Co,Cu,Mg,Ni,Zn)O via Micropillar Compression and Post-Deformation Transmission Electron Microscopy
Role of Temperature on Screw Dislocation Dynamics in Ta, Ta-W, and TaNbTi
Scanning Tunneling Microscopy for High Entropy Materials
Selective Laser Sintering and Spark Plasma Sintering of Compositionally Complex Carbide Ceramics
Short- and Long-Range Chemical Order in AlCrTiV
Strain Hardenable and Ultrastrong Maraging Medium-Entropy Alloy
Study of Ductility and Plasticity of HfTiZrNbTa High-Entropy Alloys Using In-Situ Neutron Diffraction
Swift Heavy Ion-Induced Radiation Titanate Pyrochlore Oxides and Influence of Material Complexity
Temperature-Dependent Deformation Mechanisms in the FeCrNi Alloy Containing BCC Particles: Dislocation Cells and Deformation Twins
Tensile Creep Mechanisms of FCC and BCC High Entropy Alloys
The Effect of Carbide Nanoprecipitation on the Yield Strength of FCC Multi-Principal Element Alloys
The Role of Enthalpy, Configurational Entropy, and Vibrational Entropy in Mixing Ultrahigh Temperature Ceramics
The Role of Hafnium in the Oxidation of Hf-Nb-Ta-Ti-Zr-Al Refractory Multi-Principle Element Alloys
Theoretical and Numerical Study to Model the Effect of Dynamic Strain Aging in the HfNbTaTiZr Refractory High-Entropy Alloy
Thermal Stability and Electronic Properties of Rare-Earth High-Entropy Oxides: A First-Principles Approach
Thermodynamics and Plastic Deformation in BCC Refractory CCAs
Ubiquitous Short-Range Order in Multi-Principal Element Alloys
Ultra Low Density High Entropy Metamaterials
Unlocking Uniformity: Investigating the Influence of Reactive Element Additions and Al-Zr Intermetallics on Al2O3 Formation in RHEAs
Unveiling of Strengthening Mechanisms by Cu-Added High-Entropy Alloy Fillers in Metastable Ferrous Medium-Entropy Alloy Welding
Vanadium Carbide Precipitation Hardening in Equiatomic FeNiCrMn and FeCoNiCr High Entropy Alloys
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