Multi-Scale Microstructure Characterization of Solid Oxide Fuel Cell Assemblies with Ultra Small-Angle X-Ray Scattering
Andrew J. Allen, Jan Ilavsky, Artur Braun
The structure of three solid oxide fuel cell assemblies with 200 micrometers nominal thick-ness in the transverse plane, before and after operation, and with and without sulfur con-taining fuel, is quantified with ultra small angle x-ray scattering (USAXS). Thin sections of 80 micrometers thickness in the coronal direction were cut in order to have sufficient X-ray transmission at the 16.9 keV X-ray energy used. USAXS curves for 0.001 nm-1 < q < 5 nm-1 were recorded in steps of 15 micrometers at positions across the coronal plane. The USAXS curves were analyzed to determine the solid/void microstructure over the scale range from 1 nm to 3 micrometers. Distinct micro- and meso-structural differences were revealed between the pristine reference cell assembly and the two operated cells.
, Ilavsky, J.
and Braun, A.
Multi-Scale Microstructure Characterization of Solid Oxide Fuel Cell Assemblies with Ultra Small-Angle X-Ray Scattering, Advanced Engineering Materials
(Accessed March 4, 2024)