Abstract
A method for the synthesis of ZnSb and β-Zn4Sb3 compounds has been developed, using rapid crystallization of the melt on a rotating disk (melt spinning) to obtain powders. The microstructure and thermoelectric properties of samples obtained by hot pressing of powders prepared by this method are investigated. The microstructure, chips, and composition of the samples were studied using optical and scanning electron microscopes. The nanoscale structure of the grains of the materials obtained has been established. Thermoelectric parameters: Seebeck coefficient, electrical conductivity and thermal conductivity, in the temperature range 300 − 700 K were measured. The coefficient of thermoelectric figure of merit is calculated. The hot-pressed β-Zn4Sb3 samples from granules, prepared by melt spinning had the highest figure of merit ZТ = 1,0 at 600 K.
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