Microstructure and property analysis of thermoelectric silicon germanide and titanium nickel tin alloys

he microstructure, microchemistry and thermoelectric properties of three types of thermoelectric materials have been studied in this research. They include conventional ball milled and hot sintered n-type ;Secondly, a fine grain structure containing microtwins of number density ;The third experimental investigation is on the variation of microstructure and thermoelectric properties of arc melted TiNiSn alloys with annealing at 800;Finally, a calculation has been performed based on Klemens-Callaway relaxation time theory to elucidate the effect of grain size and second phase particles on thermal conductivity (;First, it was found that the grain size of the annealed n-type alloys is very uniform, with the average diameter about 60...