抄録
Relation between chemical degradation degree and surface strength in electrolyte membrane for PEFC was investigated by a micro slurry-jet erosion (MSE) test. The electrolyte membrane was deteriorated by exposing it to the hydrogen peroxide. As a result of the MSE test, it was found that the strength change in the thickness direction of the degraded electrolyte membrane was constant. This result suggested that the degradation chemistry of the electrolyte membrane was uniform in the thickness direction. The change in relative strength obtained by the MSE test occurred up to 6 h exposure time, however, after that the relative strength of the electrolyte membrane was constant.
