Alternate materials were investigated to replace the carbon-carbon composite, known as Fine Weave Pierced Fabric (FWPF). currently used by NASA in their Multi-Mission Radioisotope Thermoelectric Generators (MMRTG). These MMRTGs are used as the power sources for nearly all of NASA's probes and rovers. Fibers, resins and nanofillers were reviewed and nine possible composite combinations were generated as alternative options to the FWPF. These can be manufactured and tested for qualification of the best possible composite combination.
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