用于热电材料的氧化防护混合涂层

Oxidation Protective Hybrid Coating for Thermoelectric Materials.

作者信息

Gucci Francesco, D'Isanto Fabiana, Zhang Ruizhi, Reece Michael J, Smeacetto Federico, Salvo Milena

机构信息

School of Engineering and Material Science, Queen Mary University of London, London E1 4NS, UK.

Nanoforce Technology Limited, London E1 4NS, UK.

出版信息

Materials (Basel). 2019 Feb 14;12(4):573. doi: 10.3390/ma12040573.

DOI:10.3390/ma12040573

PMID:30769842

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6416594/

Abstract

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.

摘要

两种在低于300°C温度下固化的商用混合涂层成功用于保护硅化镁锡和锌掺杂黝铜矿热电材料。在500°C空气中，使用溶剂基涂层120小时后，硅化镁的氧化速率大幅降低，并且观察到功率因数略有增加。水性涂层对于防止涂覆的黝铜矿的电阻率增加有效，在350°C下48小时后保持其功率因数。