NASA NTRS · 19800002359
Technology development for phosphoric acid fuel cell powerplant, phase 2
Abstract
A technique for producing an acid inventory control member by spraying FEP onto a partially screened carbon paper backing is discussed. Theoretical analysis of the acid management indicates that the vapor composition of 103% H3PO4 is approximately 1.0 ppm P4O10. An SEM evaluation of corrosion resistance of phenolic resins and graphite/phenolic resin composites in H3PO4 at 185 C shows specific surface etching. Carbonization of graphite/phenolic bipolar plates is achieved without blistering.
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Christner, L.. 1979-06-01. Technology development for phosphoric acid fuel cell powerplant, phase 2. https://ntrs.nasa.gov/citations/19800002359
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