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Meeting 2021 TMS Annual Meeting & Exhibition
Symposium Phonons, Electrons and Dislons: Exploring the Relationships Between Plastic Deformation and Heat
Presentation Title Introduction to Dislons: A Quantized Description of Dislocations with Implications for Thermal and Electrical Transport
Author(s) Mingda Li
On-Site Speaker (Planned) Mingda Li
Abstract Scope Dislocations, as a type of crystallographic defects, contain a few fascinating features such as topological protection, long-range interaction, and the deep connections to various fields in physics such as superconductors and phase transitions. In this presentation, we introduce our theoretical effort by treating a dislocation as a quantum field, aka a "dislon", why and how a classical dislocation shall be quantized, and the qualitatively new electronic and phonon behaviors enabled through the dislocation quantization, such as phonon instabilities beyond defect scattering and novel electronic and phonon phases, supported by recent simulations and experiments. We conclude by explaining the necessity and exciting opportunities the quantum field approach may bring to elucidate the roles classical crystallographic defects may play in materials electronic and thermal properties.
Proceedings Inclusion? Planned:

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Dislocation-limited Thermal Transport in III-Nitride Materials
Dislocation Drag in Metals: Dependence on Velocity, Temperature, Density, and Crystal Geometry, and Its Effect on Material Response
Do Moving Dislocations Induce Lattice Instabilities?
Inelastic Neutron Scattering Investigation of the Phonon Spectra of Dislocated Nb Crystals
Introduction to Dislons: A Quantized Description of Dislocations with Implications for Thermal and Electrical Transport
Introductory Comments: Phonons, Electrons and Dislons: Exploring the Relationships between Plastic Deformation and Heat
Role of Tantalum Concentration and Processing Temperature on High Strain Rate Phonon Behavior in Copper-tantalum Alloys
Shear Bands, Thermal Profiles and Microstructure Stability in Large-strain Deformation of High Entropy Alloys
The Effects of Heating Rate on Defect Reduction by Recrystallization in Deformed Polycrystal Niobium
Thermal and Strain Rate Effects on Plasticity and Fracture of Gen 3 Steels
Thermo-mechanics of Large Deformation Shear Banding
Thermomechanical Conversion in Metals: Dislocation Plasticity Model Evaluation of the Taylor-quinney Coefficient
Unified Analysis of Temperature Fields Arising from Large Strain Deformation and Friction in Manufacturing Processes

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