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dc.contributor.authorCurtin, William
dc.contributor.authorArias-Monje, Pedro J.
dc.contributor.authorDominguez, Charliean
dc.contributor.authorPhillips, Jonathan
dc.contributor.authorLuhrs, Claudia C.
dc.dateFebruary 15, 2016
dc.date.accessioned2016-08-12T15:21:07Z
dc.date.available2016-08-12T15:21:07Z
dc.date.issued2016-02-15
dc.identifier.citationCurtin, William, et al. "Scaling up the Fabrication of Mechanically-Robust Carbon Nanofiber Foams." Fibers 4.1 (2016): 9.en_US
dc.identifier.urihttp://hdl.handle.net/10945/49623
dc.descriptionThe article of record as published may be found at http://dx.doi.org/10.3390/fib4010009en_US
dc.description.abstractThis work aimed to identify and address the main challenges associated with fabricating large samples of carbon foams composed of interwoven networks of carbon nanofibers. Solutions to two difficulties related with the process of fabricating carbon foams, maximum foam size and catalyst cost, were developed. First, a simple physical method was invented to scale-up the constrained formation of fibrous nanostructures process (CoFFiN) to fabricate relatively large foams. Specifically, a gas deflector system capable of maintaining conditions supportive of carbon nanofiber foam growth throughout a relatively large mold was developed. ANSYS CFX models were used to simulate the gas flow paths with and without deflectors; the data generated proved to be a very useful tool for the deflector design. Second, a simple method for selectively leaching the Pd catalyst material trapped in the foam during growth was successfully tested. Multiple techniques, including scanning electron microscopy, surface area measurements, and mechanical testing, were employed to characterize the foams generated in this study. All results confirmed that the larger foam samples preserve the basic characteristics: their interwoven nanofiber microstructure forms a low-density tridimensional solid with viscoelastic behavior. Fiber growth mechanisms are also discussed. Larger samples of mechanically-robust carbon nanofiber foams will enable the use of these materials as strain sensors, shock absorbers, selective absorbents for environmental remediation and electrodes for energy storage devices, among other applications.en_US
dc.description.sponsorshipOffice of Naval Research, Code 30, Force Protection Thrusten_US
dc.format.extent14 p.en_US
dc.rightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.en_US
dc.titleScaling up the Fabrication of Mechanically-Robust Carbon Nanofiber Foamsen_US
dc.typeArticleen_US
dc.contributor.corporateNaval Postgraduate School (U.S.)en_US
dc.contributor.departmentMechanical and Aerospace Engineering (MAE)en_US
dc.subject.authorcarbon nanofibersen_US
dc.subject.authorcarbon foamen_US
dc.description.funderOffice of Naval Research, Code 30, Force Protection Thrusten_US


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