DEVELOPMENT OF A COMPLIANT SEAL FOR USE IN PLANAR SOLID OXIDE FUEL CELLS

Conference · Mon Jan 05 00:00:00 EST 2004

DOI:https://doi.org/10.1002/9780470291184.ch46· OSTI ID:1048629

Weil, K Scott; Hardy, John S

We have developed a deformable seal for planar solid oxide fuel cells (pSOFCs) that can accommodate significant thermal mismatch between the adjoining components and still remain hermetic. Essentially composed of a thin stamped metal foil bonded to both sealing surfaces, the seal offers a quasi-dynamic mechanical response to thermally generated stresses. It remains well adhered to both faying surfaces, i.e. non-sliding, but readily yields or deforms under modest thermo-mechanical loading, thereby mitigating the transfer of these stresses to the adjacent ceramic and metal components. Initial thermal testing demonstrates that the seal retains its original hermeticity and strength after a number of rapid cycles between {approx}75 C and 750 C.

• Research Organization: Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 1048629
• Report Number(s): PNNL-SA-42745; AA6010000; TRN: US201216%%1056
• Resource Relation: Conference: 28th International Conference on Advanced Ceramics and Composites A: Ceramic Engineering and Science Proceedings, 25(3):321-326
• Country of Publication: United States
• Language: English

Related Subjects

30 DIRECT ENERGY CONVERSION
CERAMICS
SOLID OXIDE FUEL CELLS
STRESSES
THERMAL TESTING
solid oxide fuel cell
compliant seal