A Basic Investigation of Corrosion under Thin-Film Electrolytes

本研究采用开尔文探针研究金属表面的腐蚀行为。研究人员正在构建一个恒电位/恒流系统，使用开尔文振动器作为非接触参比电极。开尔文探针是一种传感器，用于确定暴露于薄膜电解质的材料的腐蚀电位。该系统用于测量均匀金属和电偶金属在极薄的电解质层和湿度薄膜下的腐蚀电位和腐蚀电流随时间的变化。该装置还用于确定衬底诱导的非均质性和缺陷对阳极生长二氧化钛半导体性能的影响。这项研究在对大气腐蚀的新认识方面取得了重大进展。开尔文探针允许电化学测量通过精确控制的电解质薄膜在特定的污染气氛。

This research employs Kelvin probes to study the corrosion behavior of metallic surfaces. The investigators are constructing a potentiostat/galvanostat system using the Kelvin vibrator as a contactless reference electrode. The Kelvin probe is a sensor for determining the corrosion potential of materials exposed to thin film electrolytes. This system is used for the measurement of the corrosion potential and corrosion current versus time of homogeneous and of galvanically coupled metals under very thin electrolyte layers and humidity films. The devise is also used to determine effects of substrate-induced heterogeneities and defects on the semiconducting properties of anodically grown titanium dioxide. %%% This research is making significant strides in new understanding of atmospheric corrosion. The Kelvin probe permits electrochemical measurements through precisely controlled electrolyte films within specific pollutant atmospheres.