Microstructures and thermoelectric properties of p-type pseudo-binary AgxBi0.5Sb1.5−xTe3 (x = 0.05–0.4) alloys prepared by cold pressing |
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| Authors: | J.L. Cui H.F. Xue W.J. Xiu |
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| Affiliation: | aSchool of Mechanical Engineering, Ningbo University of Technology, Ningbo, 315016, P R China;bSchool of Materials Science and Engineering, China University of Mining and Technology, Xuzhou, 221008, P R China |
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| Abstract: | The p-type pseudo-binary AgxBi0.5Sb1.5−xTe3 (x = 0.05–0.4) alloys were prepared by cold pressing. The thermal conductivities (κ) were calculated from the values of heat capacities, densities and thermal diffusivities measured, and range approximately from 0.66 to 0.56 (W K− 1 m− 1) for the AgxBi0.5Sb1.5−xTe3 alloy with molar fraction x being 0.4. Combining with the electrical properties obtained in the previous study, the maximum dimensionless figure of merit ZT of 1.1 was obtained at the temperature of 558 K. |
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| Keywords: | Thermal conductivities Pseudo-binary AgxBi0.5Sb1.5− xTe3 (x = 0.05– 0.4) alloys Cold pressing |
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