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Meeting MS&T22: Materials Science & Technology
Symposium Mesoscale Phenomena in Functional Polycrystals and Their Nanostructures
Presentation Title Modeling Thermoelectric Properties of Polycrystalline Materials at Mesoscale
Author(s) Dharma Raj Basaula, Mohamad Daeipour, Lukasz Kuna, John Mangeri, Boris Feygelson, Serge Nakhmanson
On-Site Speaker (Planned) Dharma Raj Basaula
Abstract Scope A finite element method-based approach has been developed for evaluating the thermoelectric properties of polycrystalline materials at the mesoscale. This approach was first validated for isotropic systems by simulating effective Seebeck effect in a thermocouple and Peltier cooling at an interface between two dissimilar materials, obtaining good agreement with prior experimental or computational results. The developed approach was then used to model coupled heat and electrical current flow through an anisotropic polycrystalline material, providing local temperature and electric potential distributions under different applied conditions. This computational framework establishes the foundation necessary to elucidate the intricacies of coupled thermal and electric conduction through geometrically complex materials, including polycrystals, nanostructures and nanocomposites, and could provide new insights for improvement of their operational efficiency.

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A New Carbon Solid: Layered Amorphous Graphene — Its Structure, Cohesion and Space-projected Conductivity
Aerosol Deposition and Characterization of Complex Oxide Systems
Conduction in Aluminum with Graphite and Graphene Additives
Coupled Multiferroic Phase Field Models for BiFeO3: Domain Topologies and Order Parameter Dynamics
D-20: Asymmetric Tribology of Symmetric Polarization
D-21: Machine-learned Large-scale Model for Layered Amorphous Graphene: A Study of Its Structure and Thermodynamics
D-22: Mesoscale Modeling of Domain Wall Behavior in Perovskite Ferroelectrics
Fabrication and Properties of Multi-scale Architected Materials
Field-assisted Sintering of FeCo/MnZn Ferrite Core-Shell Structured Particles
From Nanoparticles to Nanocrystalline Solids with New Functionalities: Thermoelectrics as a Case Study
Mesoscale Magnetic Imaging of Functional Materials
Micro/Nanostructure Effects on Thermal Conductivity and Optical Light Transmission—Designing High Performance Laser Ceramics
Modeling the Relaxor Dielectric Dispersion of Ba(1−x)Sr(x)TiO3 with a Local Phase Field Method
Modeling Thermoelectric Properties of Polycrystalline Materials at Mesoscale
Optimization of Metal/Ferroelectric/Insulator/Semiconductor Capacitor Toward Reliable Gate Stacks of Field-effect-transistors
Polycrystal-inspired Stochastic Mechanical Modeling of Complex, Heterogeneous Porous Microstructures
Strain-induced Novel Quantum and Ionic Phenomena in Oxide Heterostructures
Structure, Charge Distribution and Electronic Transport Mechanism in Layered Amorphous Graphene
Supercrystals as Hybrid Nanostructured Materials with Tailored Mechanical and Magnetic Properties
Synthesis, Processing, and Properties of High Performance Lead Free Electro-optic Ceramics

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