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dc.contributor.advisorYu, Choongho
dc.creatorHu, Fang
dc.date.accessioned2012-07-16T15:58:38Z
dc.date.accessioned2012-07-16T20:31:46Z
dc.date.available2014-09-16T07:28:21Z
dc.date.created2012-05
dc.date.issued2012-07-16
dc.date.submittedMay 2012
dc.identifier.urihttp://hdl.handle.net/1969.1/ETD-TAMU-2012-05-11128
dc.description.abstractThe environmentally friendly n-type Mg2(Si, Sn) thermoelectric solid solutions have a strong potential of commercial utilization in thermoelectric (TE) energy conversion due to their availability, low density (~3.02 g/cm3), and high stability at middle temperature range (400-600 ▫C) that are typically observed from waste heat dissipating systems. The bulk materials were prepared from element powders via slow cooking under vacuum condition and current-assisted hot-press sintering. Temperature vs time curves have been researched in this thesis for fully reacted magnesium-silicide & magnesium-stannide green ingots with doping materials i.e. antimony, bismuth by different doping ratios. These ingots were ground by a high energy ball miller, uniaxial cold pressed into half inch pallets and then sintered by Direct Current-assisted hot pressing. Different synthesis conditions such as ball milling, sintering time, pressure, have been compared by SEM images and XRD tests analysis to figure out optimized process parameters. Several samples’ thermal conductivities (κ) were plotted as a function of temperature to study different synthesis strategies and doping materials’ effects on phonon scattering inside bulk thermoelectric materials.en
dc.format.mimetypeapplication/pdf
dc.language.isoen_US
dc.subjectThermoelectricsen
dc.subjectMg2Si-Mg2Snen
dc.subjectSynthesisen
dc.subjecthigh energy ball millingen
dc.titleSynthesis and Characterization of Magnesium-Silicon and Magnesium-Tin Solid Solutions for Thermoelectric Applicationsen
dc.typeThesisen
thesis.degree.departmentMechanical Engineeringen
thesis.degree.disciplineMechanical Engineeringen
thesis.degree.grantorTexas A&M Universityen
thesis.degree.nameMaster of Scienceen
thesis.degree.levelMastersen
dc.contributor.committeeMemberArroyave, Raymundo
dc.contributor.committeeMemberRadovic, Miladin
dc.contributor.committeeMemberKuo, Yue
dc.type.genrethesisen
dc.type.materialtexten
local.embargo.terms2014-07-16


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