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Meeting 2017 TMS Annual Meeting & Exhibition
Symposium Alloys and Compounds for Thermoelectric and Solar Cell Applications V
Presentation Title Synthesis, Processing and Transport Properties of Metastable Phases in the Mg-Si-Sn System
Author(s) Pathikumar Sellappan, Anthony Fong, Masayuki Murata, Yasuhiro Kodera, Javier E Garay
On-Site Speaker (Planned) Pathikumar Sellappan
Abstract Scope Compounds in the Mg-S-Sn recently attracted considerable attention as thermoelectric materials due to their low-cost, earth abundant, environmentally friendly constituents. We demonstrate the synthesis of trigonal form of Mg-Sn and Mg-Si-Sn, phases which are not found on the Mg-Sn or Mg-Si-Sn phase diagram. We investigated the phase transformation (cubic to trigonal) while increasing the Si content on the system and optimized the high-energy ball milling parameters. We employed current activated pressure assisted densification (CAPAD) on the phase transformed powder to consolidate them into a near theoretical dense form while maintaining the phase as well as fine nano-structure. We present the effect of CAPAD parameter on the density, microstructure and phase composition of the material. We also show the influence of processing parameters on the transport properties and thermoelectric properties.
Proceedings Inclusion? Planned: Supplemental Proceedings volume

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

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Engineering High-zT In-doped GeTe: The Phase Equilibria and Thermoelectric Properties
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Enhanced Thermoelectric Figure of Merit in Bi-Sb-Te based Composites with Dispersed ZrO2 Nanoparticles
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Enhancement of Thermoelectric of PbTe Bulks Visa Heterogeneous Nanostructure
Evaluation of Cobalt Diffusion Barrier for Low and Medium Temperature Thermoelectric Module
Exploratory Research of New Polar Chalcogenides
Fabrication of BiSbTe-based Thermoelectric Materials Using Water Atomization and Spark-plasma Sintering Techniques
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Integrating High-throughput Computations and Experimental Knowledge to Advance Design and Discovery of Novel Thermoelectric Materials
Interfacial Reactions at the Joints of PbTe Thermoelectric Modules
Intrinsic Thermoelectric Properties of SnSe Single Crystals and Its Associates
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L-12: Bi0.5Sb1.5Te3 Thin Films with Bulk-like Thermoelectric Properties on Glass and Flexible Substrates
L-13: Contribution Percentages of Electromigration and Diffusion on Interfacial Reactions at Joints in Thermoelectric Modules
L-14: Effect of Microstructure of the Thermoelectric Properties of Al-based Intermetallic Compounds Prepared by a Melt-spinning Method
L-15: Electronic Structure and Thermoelectric Properties of Pseudogap Intermetallic Compound Al5Co2
L-16: Interfacial Reactions between Indium and Bi2Te3-based Thermoelectric Materials
L-17: Micro Energy Harvesting Characteristics of Thermoelectric Thin-film Devices Fabricated Using Flip-chip Process
L-18: Rapid Synthesis of Zinc and Nickel Co-doped Tetrahedrite Thermoelectrics by Mechanical Alloying and Reactive Spark Plasma Sintering
L-19: Synthesis and Thermoelectric Properties of ZnSnSb2 with Chalcopyrite Structure
L-20: Synthesis of Ge-germanide Nanocomposites by Melt-spinning Technique
L-21: Thermoelectric Properties of Amorphous Ti50Cu28Ni15Sn7-dispersed Bi0.4Sb1.6Te3 Nanocomposite Prepared by Mechanical Alloying and Vacuum Hot Pressing
L-22: Thermoelectric Properties of Bulk Al2(FeSi)3
L-23: Thermoelectric Properties of Nanostructured HMSs/Si Eutectic Alloy Prepared by a Melt Spinning Method
Microstructural Size and Morphology Control of Si Base Thermoelectric Composites
Microstructure and Thermoelectric Properties of Silicon and Metal Silicides Nanocomposites Synthesized by a Melt Spinning Method
Nanostructure and Phonon Engineering in Oxide Thermoelectric Materials
Nanostructure of Si/transition Metal Silicide Composite Prepared by a Melt Spinning Method
Novel Approaches on the Design of Thermoelectric Materials for Power Generation: Present and Future Prospects
Phase Diagram of Ternary Cu-Ga-Te System and Thermoelectric Properties of Chalcopyrite CuGaTe2 Materials
Phase Equilibria of Ternary Sn-Sb-Co Systems and Ge-Co-Sb and Thermoelectric Properties of Sn/Ge Doped Skutterudite CoSb3
Phase Stability and Vacancy-site Occupation of Half-Heusler Compounds in Multi-component System M(Ni, X)Sn (M: Ti, Zr, Hf and X: Co, Ir)
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Thermoelectric Performance of Undoped and Ag Doped Mg2Sn Alloys
Thermoelectric Properties of Amorphous Half-Heusler Thin Films Synthesized by Magnetron Sputtering
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