ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
In the preparation of polymer-derived SiC fibers, nanochannels are believed to be formed in theearly pyrolysis stages due to loss of large volumes of pyrolysis gases. In this paper, small angle X-rayscattering (SAXS) was applied to the characterization and calculation of nanochannels in partiallypyrolyzedSiC fibers. The SAXS measurements showed that nanochannels with a radius of 1.0-20 nmwere formed for fibers heat-treated at 973K and 1173K. But their distributions were not continuous and atlower part of the distribution, a peak value was observed at about 1.2nm. This means if the nanochannelsare finely controlled, the partially-pyrolyzed SiC fibers have great potential application in the fields ofhydrogen storage, gas separation, and so on
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.336-338.1301.pdf
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