You can determine whether and to what extent such migration effects occur by the adhesion of the individual layers. A test strip is adhered between two massive carrier plates and pulled apart. The measurement is the maximum force that is required to separate the layers. Since the separation process ends within a few seconds, machine control, acceleration of the testing machine and its data acquisition rate must be designed for this quick process in order to achieve reproducible results. testControl II and testXpert are flexible tools that provide reliable results even for these short term tests. Fuel cells and their bipolar plates consist of various components, such as gas diffusion layers, membranes, and electrodes.
Other critical components can be found in the fuel cell stack or fuel cell system. These are tested in order to ensure the operating safety and the longevity of a fuel cell. One example is measuring the exact thickness of the gas diffusion layers. Two test areas in the load frame allow you to quickly and easily change tests. Compression tests are performed in the lower test area via three measuring transducers to measure the deformation. With this method, the uniformity of the deformation over the entire specimen surface is monitored. In flexure tests, the flexural strength is determined with the 2-point flexure method on extremely flexible, short pieces of film in the upper test area.