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Meeting MS&T24: Materials Science & Technology
Symposium Grain Boundaries, Interfaces, and Surfaces: Fundamental Structure-Property-Performance Relationships
Presentation Title Stressing Grain Boundaries to Change Local Properties
Author(s) William D Hahn, Andrew R Lupini, Klaus van Benthem
On-Site Speaker (Planned) Klaus van Benthem
Abstract Scope Atomic-scale defect configurations determine the properties and functionalities of materials. The application of stress fields such as elevated temperature, modified gas phases, or externally applied electric fields may alter grain boundary structures and cause modification of macroscopic physical properties. In this talk I will review recent experiments on electric field induced modification of 24o tilt grain boundaries SrTiO3. Aberration-corrected scanning transmission electron microscopy experiments revealed changes in the atomic interface structures, local bonding configurations, and interfacial physical density. Electron energy-loss spectroscopy experiments were carried out to explore field-induced changes of the local complex dielectric function that would result in modified local optical properties. Parts of the electron microscopy characterization was conducted at the Center for Nanophase Materials Sciences, which is a DOE Office of Science User Facility.

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A Correlative Microscopy Framework for In Situ Grain Growth Studies in Thin Films
A Model for Grain Boundary Strengthening
Abnormal Grain Growth in Metallic Thin Films Under High Cyclic Loading
An Atomistic Study of the Radiation Response of Grain Boundaries in High Entropy Alloys
An Orientation-Field Phase Field Model of Grain Growth
Billion-Cycle Fatigue Endurance Enabled via Grain Boundary Stabilization
Charged Dislocations and Charged Grain Boundaries in Ionic Ceramics
Charged Domains on the Surface of a Centrosymmetric Ferroelastic Crystal
Data Analytics for Sintering Regimes Identification
Direct Nanovolumetric Investigation of Domain Walls and Grain Boundaries in Polycrystalline Functional Oxides
Direct Observation of Anisotropic Growth of Nickel Oxide Nanostructure by the Terrace-Ledge-Kink Mechanism
E-1: Effects of Al, Bi, Ce, and Ti Additions on the Microstructure of Ni-Alloyed Ductile Iron
E-2: Grains Ain't Misbehaving or Going Wild? A Spontaneous Activation of Grain Boundaries Initiating Abnormal Grain Growth!
E-3: Research of Special Boundaries in the Heat Treatment of Materials in the Two-Phase Region under Supercritical Temperature Effects
E-4: Role of Cerium on Intricacies of Deformed State and Softening Kinetics of Low Carbon Steels
E-5: Study on Interfacial Reaction and IMC Growth Kinetics in Sn-Based Lead-Free Solder Reinforced by Nickel-Coated Carbon Fiber
E-6: UO2 Grain Boundaries Interactions with Hydrogen Using Large Scale Density Functional Theory
Grain Boundary Migration in the Presence of a Liquid Phase
Grain Boundary Misorientation-Dependent Phase Transforming TiOx Polycrystals
Grain Boundary Phase Transformations in Segregated Metallic Alloys
Grain Boundary Segregation and Solute Drag in Multicomponent Alloys
Grain Boundary Segregation Behavior in Ni and Fe Based Alloys During Diffusional Creep
Identifying Subgrain Boundary Migration Behavior at Early Stage Recrystallization
In Situ TEM Strain Rate Dependence of Activation Volume in Au Ultrafine Grained Thin Films
Influence of Initial Duplex Microstructure on Solid-State Pseudo-Single Crystal Growth of CoTi2O5
Influences of Ternary Solutes on Nanocrystalline Stability
Inherent Chemical Disorder at Grain Boundaries in Complex Oxides
Local Cationic Ordering in Iron-Substituted Strontium Titanate
Machine Learning-Aided Optimization of the Flash Sintering Process
Microstructural Effects on Percolating Ionic Ceramic Granular Structures
Multi-Scale Analysis of Lath Boundary Sliding during Plastic Deformation of Lath Martensite In Low-Carbon-Steel
Multiscale Data Analytics Strategy for Sintering
Observation of Abnormal Grain Growth in 4D of Pure Ni
On the Aleatoric Uncertainty and Uncertainty Propagation in Molecular Dynamics Simulation of Grain Growth
Phase Field Data Analytics of Grain Boundary LiFePO4 Kinetics
Predicting the Structure and Transitions of Grain Boundaries in BCC Metals
Quantitative Analysis of Ca and Y Segregation Behaviors in Magnesium Aluminate Spinel
Role of Ripplocations and Ripplocation Boundaries on the Deformation of Graphite
Special Grain Boundaries in NiTi Shape Memory Alloys as Sites for Preferential Martensite Nucleation
Stabilized Grain Boundaries in CuTa Alloys and Their Resulting Properties
STEM Dynamic Observations of Grain Boundary Fracture, Diffusion and Phase Transformation in Oxides
Stressing Grain Boundaries to Change Local Properties
Surface Energy Measurements of Yttrium Oxide
The Influence of Zr on the Dewetting of Cu-Zr Alloy Thin Films
The Role of Grain Boundary Dislocations in the Deformation of Polycrystalline Materials
Thicker Amorphous Grain Boundary Complexions Lead to Increased Plasticity in Nanocrystalline Cu Alloys

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