电化学交流阻抗(EIS)在金属文物表面保护涂层性能评价中的应用综述

文物表面保护涂层性能的评价以及选择优异的涂层,是文物保护工作的一个重要环节。在涂层性能评价中,相较于湿热、酸碱浸泡、盐雾等传统的加速腐蚀老化实验方法,电化学交流阻抗技术(EIS)具有定量、快速、便捷、可直接应用于文物本体进行无损检测分析等优势。简要介绍了对交流阻抗的原理、实验方法和分析方法,并对其在金属文物表面保护涂层性能评价和筛选工作中的具体应用做出综述。

Application of electrochemical impedance spectroscopy technique in the

Selection and evaluation of protective coatings is an important part of heritage conservation. Compared with the traditional accelerated corrosion aging test method, electrochemical impedance spectroscopy (EIS) is qualitative, faster and more accurate, and can be directly used as a nondestructive method for studying cultural relics. This paper introduces the theory, experimental and analytical method of EIS and summarizes its application on metal relics, including bronze, iron and silver objects. The EIS method can be used to select and evaluate protective coatings.