CCS and Power Systems
Advanced Energy Systems - Solid Oxide Fuel Cells
Reliability of Materials and Components for Solid Oxide Fuel Cells
Performer: Oak Ridge National Laboratory
Project No: FWP-FEAA066
Oak Ridge National Laboratory (ORNL) will experimentally characterize SOFC cell and stack materials and interfaces, provide data on thermal and mechanical properties under typical operating conditions, and establish the experimental techniques required to collect this data. This information is then used to produce high-fidelity models to assess and predict SOFC cell and stack behavior.
ORNL will also identify the mechanisms that are responsible for the failure of SOFC components, in particular multilayer anode/electrolyte/cathode assemblies which constitute the building blocks of these systems. They will then develop and implement a probabilistic design methodology for predicting the life and reliability of SOFCs. In addition, ORNL will characterize the thermo-mechanical properties of these materials for incorporation into state-of-the-art computer-based modeling tools. ORNL will also develop and evaluate engineered glass-based composite seals characterizing self-healing SOFC seal designs (glass seals that flow at high temperatures to heal cracks formed during thermal cycling) incorporating crystallization-resistant glasses.
Young's modulus of a barium alkali silicate determined as a function of temperature using a resonant ultrasound spectrometer.