The paper presents the thermoelectric properties of Mg2Si coatings by Atmospheric Plasma Spray (APS), High Velocity Oxy-Fuel Spray (HVOF) and Vacuum Plasma Spray (VPS). Thermal spraying, a flexible, industry-scalable and cost-effective manufacturing process, was first applied to prepare Mg2Si as thermoelectric materials. The characterization of Mg2Si coatings including thermal conductivity, electric conductivity, and Seebeck coefficient are reported. XRD and SEM analysis of the coatings are presented as well.

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