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Systematic microstructural analyses have been carried out on a series of technological SOFCs that went through long-term cell tests with various operating parameters including temperature, current load and time length under current. For the LSM-YSZ cathode, a number of microstructure degradation mechanisms have been identified. And it has been observed that different mechanisms dominate the degradation...
The changes in the cathode/electrolyte interface microstructure have been studied on anode-supported technological solid oxide fuel cells (SOFCs) that were subjected to long-term (1500h) testing at 750°C under high electrical loading (a current density of 0.75A/cm 2 ). These cells exhibit different cathode degradation rates depending on, among others, the composition of the cathode gas, being...
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