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Meeting 2022 TMS Annual Meeting & Exhibition
Symposium Grain Boundaries and Interfaces: Metastability, Disorder, and Non-Equilibrium Behavior
Presentation Title Mechanisms for and Thermodynamics of Interfacial Strain Mediation
Author(s) Shen J. Dillon
On-Site Speaker (Planned) Shen J. Dillon
Abstract Scope Interfacial line defects can serve as point defect sources and sinks. Those that exhibit climb oin the process can mediate strain during process such as Coble creep and densification. These defects are inherently non-equilibrium, and little experimental or computational work has detailed their structure, thermodynamics, or kinetics. This talk will describe efforts to experimentally characterize the energy barriers and activation volumes associated with nucleating strain mediating interfacial line defects using high temperature in situ Coble creep and sintering experiments.
Proceedings Inclusion? Planned:

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Characterization of the Structure and Chemistry of Grain Boundaries and Heterointerfaces in Multiphase High Entropy Oxides Processed by Heat Treatment
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Competition Between Shear Coupling and Sliding in Doped Nickel Grain Boundaries
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Configurational Entropy of Amorphous Undoped and Doped ZrO₂ and SiO₂
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G-28: Investigation of the Effect of Heating Rate on the Recrystallization of Deformed Samples of Polycrystalline High-purity Niobium
G-29: Numerical Determination of the GND Footprint of Dislocation Loops: Connecting Atomistic Descriptions with Experimental Observations
G-30: The Dimensionality of Absorbed Defects Dictates GB Response to Irradiation
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Integration of Microscopy and Deep Learning to Define Localized Grain Boundary Sink Efficiency
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Machine Learning-assisted Prediction of Interfacial Segregation in a Refractory Multi-principal Element Alloy
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