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In recent years, the interest in the research and development of "green energy" has increased dramatically, with
numerous research grants and investment in the areas of wind power, solar power and fuel cell technology. We present
results obtained from the evaluation of the acoustic properties of proton-exchange membranes used in hydrogen fuel
cells, which relate directly to the microelastic properties of such membranes. These properties play an important role in
the durability and applicability as well as the efficiency of such membranes. DuPont Nafion membranes are the most
commonly used polymeric membranes in hydrogen/oxygen fuel cells and are therefore used as examples in this study.
The microscope used in this non-destructive characterization study is a vector-contrast version of the scanning acoustic
microscope which yields images in magnitude- and phase contrast.
Albert E. Kamanyi andWolfgang Grill
"Nondestructive evaluation of acoustic properties of fuel cell proton-exchange membranes by vector contrast acoustic microscopy", Proc. SPIE 8348, Health Monitoring of Structural and Biological Systems 2012, 834818 (20 April 2012); https://doi.org/10.1117/12.915191
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Albert E. Kamanyi, Wolfgang Grill, "Nondestructive evaluation of acoustic properties of fuel cell proton-exchange membranes by vector contrast acoustic microscopy," Proc. SPIE 8348, Health Monitoring of Structural and Biological Systems 2012, 834818 (20 April 2012); https://doi.org/10.1117/12.915191