Dielectric properties of carbon nanofibre/alumina composites

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F13%3A00396177" target="_blank" >RIV/68378271:_____/13:00396177 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.carbon.2013.01.086" target="_blank" >http://dx.doi.org/10.1016/j.carbon.2013.01.086</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.carbon.2013.01.086" target="_blank" >10.1016/j.carbon.2013.01.086</a>

Result language
angličtina
Original language name
Dielectric properties of carbon nanofibre/alumina composites
Original language description
Carbon nanofibre (CNF)/Al2O3 composites with concentrations between 1 and 9 vol.% of CNF were prepared by the traditional ceramic processing route followed by spark plasma sintering. The dielectric properties of these composites have been studied in a broad frequency range from mHz to the infrared range. Unlike conventional composites, the percolation threshold in this system is more complex depending on the particles topology. Positive and negative variations by several orders of magnitude in the low frequency ac conductivity have been detected for concentrations near the threshold at 2 vol.% of CNF. To explain these results, a modified percolation model has been proposed which takes into consideration the effect of the concentration of the filler onthe microstructure of the composite.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BM - Solid-state physics and magnetism
OECD FORD branch
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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