CATEGORY: FUEL CELLS
Journal of Power Sources, Volume 222, 15 January
2013, Pages 359–366
Elastic
configurations of self-supported oxide membranes for fuel cells
K. Kerman(a), T. Tallinen(a), (c), S. Ramanathan(a), L.
Mahadevan(a), (b)
a School of Engineering and Applied Sciences, Harvard University, Cambridge,
MA, USA
b Department of Physics, Harvard University, Cambridge, MA, USA
c Department of Physics, University of Jyväskylä, P.O. Box 35, FI-40014
Jyväskylä, Finland
Abstract
Ultra-thin
oxide films offer potential in energy conversion technologies such as low
temperature solid oxide fuel cells and permeation membranes. Understanding
their thermo-mechanical stability is important.
Edge clamped, self-supported thin film membranes show hierarchical
wrinkles, with the largest wavelengths in the center. Smaller ones arise near
the clamped boundary. The largest strains, with tensile stress comparable to
the residual stress, are in the vicinity of the clamped boundary.
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