Browsing by Author "Zhang, Ruizhi"

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    Oxidation protective hybrid coating for thermoelectric materials
    (MDPI, 2019-02-14) Gucci, Francesco; D’Isanto, Fabiana; Zhang, Ruizhi; Reece, Michael J.; Smeacetto, Federico; Salvo, Milena
    Two commercial hybrid coatings, cured at temperatures lower than 300 °C, were successfully used to protect magnesium silicide stannide and zinc-doped tetrahedrite thermoelectrics. The oxidation rate of magnesium silicide at 500 °C in air was substantially reduced after 120 h with the application of the solvent-based coating and a slight increase in power factor was observed. The water-based coating was effective in preventing an increase in electrical resistivity for a coated tethtraedrite, preserving its power factor after 48 h at 350 °C.