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Meeting 2017 TMS Annual Meeting & Exhibition
Symposium Energy Technologies
Presentation Title Thermal Transport in High ZT Bulk Silicon Thermoelectric Materials
Author(s) Seyed Aria Hosseini, Jackson R. Harter, Todd S. Palmer, Lorenzo Mangolini, P. Alex Greaney
On-Site Speaker (Planned) Seyed Aria Hosseini
Abstract Scope Recently researchers have developed processes for synthesizing monolithic Si with large thermoelectric figure-of-merit ZT. These materials hold fantastic promise for realizing large scale waste heat recovery using materials that are inexpensive, abundant and environmentally benign. These materials obtain large ZT through a fine dispersion of nanoscale oxide and or carbide particles. In this work we elucidate the role these particles play in reducing thermal conductivity and increasing ZT. We determine the effect of impurities on scattering heat carriers and quantify the scattering cross section for phonon wavepackets with different wavelengths. We use Boltzmann transport simulations to predict the collective effect of the particle dispersion close to the Knudsen regime. Developing high ZT Si based thermoelectrics will have technological impact by introducing devices which can not only increase the efficiency of many heat engine cycles, but also bring the realization of industrial affordable solar energy cycle a step closer.
Proceedings Inclusion? Planned: Stand-alone book in which only your symposium’s papers would appear (indicate title in comments section below)

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Absorption of Atmospheric CO2 Using Banana Peel Waste
Advanced Composite Materials for Passive Thermal Management of Electronics
Applications of Engineered Materials for Geothermal Resource Utilization
Continuous Optimization of the Energy Input – The Success Story of AOS
D-22: AC Analysis of Impedancemetric, Electrochemical NOx Sensors for Emission Control
D-23: Effect of Granularity on Pretreatment of Coke with Microwave Irradiation
D-24: Effect of Microwave and Ultrasonic Coupling Treatment on Granularity and Microstructure of Pulverized Coal
D-25: Influence of Sodium on Coke Microstructure in Different Reaction Atmosphere
D-26: The Energy Efficiency Studies Of Aluminium Electrolysis Cells
Development of a Fluidized-Bed Ash Agglomeration Modeling Methodology to Include Particle-Level Heterogeneities in Ash Chemistry and Granular Physics
Disordered 3D Multi-layer Graphene Anode Material from CO2 for Sodium-Ion Batteries
Energy Recovery of Livestock Waste in Taiwan
Energy Savings through Thermally-efficient Crucible Technology: Fundamentals, Process Modeling, and Applications
Experimental Study on Electro-spraying of Ethanol Based on PDA Measurement
Graphene-like Ultrathin 2D Metal Oxide Nanosheets for Sustainable Applications
High-efficiency Natural-gas Generators for Residential Combined Heat and Power
High Efficiency Thermoelectric Materials (skutterudites, half Heusler alloys and clathrates) and Their Mechanical Properties
In-situ Microscopic Study of Morphology Changes in Natural Hematite and Cu-spinel Particles during Cyclic Redox Gas Exposures for Chemical Looping Applications
Interrogating Nanoscale Defects to Enable Cost-Effective Solar Energy Conversion
Large Scale Energy Storage through Heat Balance Shifts at Aluminium Smelters
Leaching of Sb from TROF Furnace Doré Slag
Life Cycle Assessments of Incineration Treatment for Sharp Medical Waste
Modeling Anthropogenic Heat Flux in Climate Models
National Laboratory-led Collaborations for Accelerating Hydrogen Storage Materials Development
Potential CO2 Emission Reduction and H2 Production Using Industrial Slag Wastes Originating from Different Industrial Sectors
Power Generation Using Combined In-situ Combustion with CO2 Separation and Sequestration
The Thermodynamics of Slag Forming Inorganic Phases in Biomass Combustion Processes
Thermal Transport in High ZT Bulk Silicon Thermoelectric Materials
Thermodynamic Stability of Condensed Phases in the Ternary System CaO-Cu-O by the EMF Method
Transforming the Way Electricity is Consumed during the Aluminium Smelting Process
Valuable Metals and Energy Recovery from Electronic Waste Streams
{Ti,Zr}NiSn - based High ZT Spinodal Thermoelectrics

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