Take a sneak peek at the new NIST.gov and let us know what you think!
(Please note: some content may not be complete on the beta site.).
NIST Authors in Bold
|Author(s):||Andrew J. Allen; Jan Ilavsky; Artur Braun;|
|Title:||Multi-Scale Microstructure Characterization of Solid Oxide Fuel Cell Assemblies with Ultra Small-Angle X-Ray Scattering|
|Published:||June 11, 2009|
|Abstract:||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.|
|Citation:||Advanced Engineering Materials|
|Pages:||pp. 495 - 501|
|Keywords:||microstructure characterization, solid oxide fuel cells, small-angle X-ray scattering, sintering|