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The search for alternative energy sources is presently at the forefront of␣applied research. In this context, thermoelectricity for direct energy conversion from thermal to electrical energy plays an important role. This␣paper is␣concerned with the development of highly efficient p-type [(PbTe)(SnTe)(Bi2Te3)]x(GeTe)1−x alloys for thermoelectric applications using spark plasma sintering (SPS). Varying...
This study is concerned with the preparation of Bi0.4Sb1.6Te3 functionally graded (FG) samples by a powder metallurgical approach for above ambient temperature applications. The FG sample is based on two components with different carrier concentration. The first is designed for a maximal figure of merit at room temperature, the second, doped with Pb, is meant for operation at higher temperatures....
Anisotropic thermoelectrical Bi0.4Sb1.6Te 3 samples were prepared by powder metallurgy procedures. A strong correlation was observed between the morphological anisotropy of the powder particles and the crystal anisotropy of the compound. By using this correlation and taking a particle size range in which the morphological anisotropy was dominant, the thermoelectrical anisotropy was maximized. This...
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