熔盐电沉积法制备铱及铱合金涂层的研究进展

Review on Preparation of Iridium and Iridium Alloy Coatings by Electrodeposition in Molten Salt

铱优异的理化性能使其成为高温抗氧化防护领域最重要的涂层材料之一。对制备铱涂层的多种方法进行了比较和分析,在此基础上,介绍了熔盐电沉积法制备铱及其合金涂层的装置和沉积前处理,讨论了熔盐体系、温度、电流密度及波形、环境气氛等工艺参数对涂层制备的影响,总结了铱及其合金涂层的性能和应用,指出了尚需研究的若干关键问题。

Iridium is one of the most important coating materials in high-temperature oxidation protective field, due to its excellent physical and chemical properties.On the basis of comparison and analysis of various preparation methods of iridium coatings, the preparation of iridium and iridium alloy coatings by electrodeposition in molten salt is reviewed in the present paper.The apparatus and pretreatment procedure of electrodeposition are introduced.The effects of processing parameters of electrodeposition on preparation of the coatings are discussed.The summary of properties and applications of iridium and iridium alloy coatings is presented.Several key issues which need to be studied hereafter are put forward.