Online Archive of University of Virginia Scholarship
"Enhanced thermoelectric performance of Half Heulser and Silicon Germanium, and calculation on lattice thermal conductivity with Effective Medium Approach"780 views
Author
Wu, Di, Physics - Graduate School of Arts and Sciences, University of Virginia
Advisors
Poon, Joseph, Department of Physics, University of Virginia
Abstract
Nanostructured Half Heusler alloys MNiSn, MCoSb (M=Hf, Zr and Ti) and SiGe nanocomposites were synthesized with high energy vibrational ball mill, followed by spark plasma sintering (SPS) consolidation. The thermoelectric properties were measured from room temperature to 1100K, the dependence of thermoelectric properties on consolidation parameters and microstructures were investigated. A differential effective medium (DEM) model was also developed to evaluate the lattice thermal conductivity in heterogeneous two-phase systems.
Degree
PHD (Doctor of Philosophy)
Keywords
thermoelectric; Half Heusler; Silicon Germanium; nanostructure; Differential Effective Medium
Language
English
Rights
All rights reserved (no additional license for public reuse)
Wu, Di. "Enhanced thermoelectric performance of Half Heulser and Silicon Germanium, and calculation on lattice thermal conductivity with Effective Medium Approach". University of Virginia, Physics - Graduate School of Arts and Sciences, PHD (Doctor of Philosophy), 2013-09-03, https://doi.org/10.18130/V31R53.