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Freeze Tape Casting of Functionally Graded Porous CeramicsFreeze tape casting is a means of making preforms of ceramic sheets that, upon subsequent completion of fabrication processing, can have anisotropic and/or functionally graded properties that notably include aligned and graded porosity. Freeze tape casting was developed to enable optimization of the microstructures of porous ceramic components for use as solid oxide electrodes in fuel cells: Through alignment and grading of pores, one can tailor surface areas and diffusion channels for flows of gas and liquid species involved in fuel-cell reactions. Freeze tape casting offers similar benefits for fabrication of optimally porous ceramics for use as catalysts, gas sensors, and filters.
Document ID
20100011222
Acquisition Source
Glenn Research Center
Document Type
Other - NASA Tech Brief
Authors
Sofie, Stephen W.
(QSS Group, Inc. Cleveland, OH, United States)
Date Acquired
August 24, 2013
Publication Date
November 1, 2007
Publication Information
Publication: NASA Tech Briefs, November 2007
Subject Category
Man/System Technology And Life Support
Report/Patent Number
LEW-17628-1
Distribution Limits
Public
Copyright
Public Use Permitted.
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