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Thermoelectric properties of Zn4Sb3-ZnSb composites synthesized by microwave plasma and hot pressing combination

Sudarat Sitthichai, Titipun Thongtem, Somchai Thongtem, Tawat Suriwong

Zn4Sb3-ZnSb composites were synthesized by a combination of 900 W microwave plasma in 4.3 kPa argon atmosphere and 550 oC hot pressing in argon of Zn and Sb powdermixture. Phases, internal texture and constituents were detected usingX-ray diffraction (XRD), scanning electronmicroscopy (SEM) and energy dispersive X-ray spectroscopicmapping. Thermoelectric properties of the composites were also studied and discussed in this research.