Agar-based gel-electrolytes for corrosion diagnostic

在腐蚀诊断中，琼脂基凝胶电解质越来越多地用作微创电解质变体。在目前的项目过程中，正在开发新的诊断概念，例如使用含指示剂的凝胶电解质的双极电化学应用，这将在几秒钟内实现高合金材料耐腐蚀性的非接触式测试。另一种应用是利用碱性凝胶电解质的腐蚀性降低，对金属中的扩散氢进行灵敏的电化学检测，这将发展成为一种用于金属部件的新型H传感器技术。凝胶电解质与金属表面的相互作用已经在几种金属-凝胶变体的项目中进行了研究，特别关注锌和锌上的腐蚀产物层。通过凝胶的新制造过程，凝胶电解质的范围将通过医学生物组分来扩展，由此将模拟用于主动腐蚀植入材料的组织样环境，因此可以更真实地对这些进行电化学和分析检查。

In corrosion diagnostics, agar-based gel electrolytes are increasingly used as minimally invasive electrolyte variants. In the course of the current project, new diagnostic concepts are being developed, such as the application of bipolar electrochemistry with indicator-containing gel electrolytes, which will enable contactless testing of the corrosion resistance of high-alloy materials within a few seconds. Another application uses the reduced corrosiveness of alkaline gel electrolytes for the sensitive electrochemical detection of diffusible hydrogen in metals, which is to be developed into a novel H-sensor technology for metallic components. The interaction of gel electrolytes with metal surfaces has already been investigated in the project on several metal-gel variants, with a special focus on zinc and corrosion product layers on zinc. By a new manufacturing procedure of the gels, the range of gel electrolytes will be extended by medical-biological components, whereby a tissue-like environment for actively corroding implant materials will be simulated and thus these can be examined electrochemically and analytically more realistically.