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Oxidation Protective Hybrid Coating for Thermoelectric Materials

School of Engineering and Material Science, Queen Mary University of London, London E1 4NS, UK
Nanoforce Technology Limited, London E1 4NS, UK
Department of Applied Science and Technology, Politecnico di Torino, 10129 Turin, Italy
Department of Energy, Politecnico di Torino, 10129 Turin, Italy
Author to whom correspondence should be addressed.
Materials 2019, 12(4), 573;
Received: 14 December 2018 / Revised: 28 January 2019 / Accepted: 6 February 2019 / Published: 14 February 2019
(This article belongs to the Special Issue Advanced Glasses, Composites and Ceramics for High Growth Industries)
PDF [4112 KB, uploaded 14 February 2019]


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. View Full-Text
Keywords: Thermoelectrics; oxidation resistance; hybrid-coating Thermoelectrics; oxidation resistance; hybrid-coating

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Gucci, F.; D’Isanto, F.; Zhang, R.; Reece, M.J.; Smeacetto, F.; Salvo, M. Oxidation Protective Hybrid Coating for Thermoelectric Materials. Materials 2019, 12, 573.

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