CNT and PDCs: A fruitful association? Study of a polycarbosilane–MWCNT composite

Dalcanale, F; Grossenbacher, J; Blugan, G; Gullo, MR; Brugger, J; Tevaearai, Hendrik; Graule, T; Kuebler, J (2015). CNT and PDCs: A fruitful association? Study of a polycarbosilane–MWCNT composite. Journal of the European Ceramic Society, 35(8), pp. 2215-2224. Elsevier 10.1016/j.jeurceramsoc.2015.02.016

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The effect of MWCNT introduction in a polycarbosilane based ceramic on its electrical properties is presented. The electrical conductivity of two MWCNT powders was measured under dynamic compaction up to 20 MPa when it reached 3–5 S/cm. The compaction behavior was also analyzed and modeled. A composite was then realized using allylhydridopolycarbosilane SMP10® and divinylbenzene as matrix. Intact 10 mm MWCNT-SiC ceramic discs samples with 2 wt.% filler load were produced pressure-less via liquid route despite the linear shrinkage of about 30%. Nanotubes microstructure and distribution in the matrix were confirmed after pyrolysis with TEM and SEM analysis. Anyhow similar electrical conductivity values after pyrolysis between the loaded and unloaded samples were measured. The microstructure analysis via XRD and TEM revealed that the percolative carbon network formed through the use of divinylbenzene improves the electric conductivity more than that of MWCNT addition and also simplifies the whole process.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Pre-clinic Human Medicine > BioMedical Research (DBMR) > DBMR Forschung Mu35 > Forschungsgruppe Herz- und Gefässchirurgie
04 Faculty of Medicine > Pre-clinic Human Medicine > BioMedical Research (DBMR) > DBMR Forschung Mu35 > Forschungsgruppe Herz- und Gefässchirurgie

UniBE Contributor:

Tevaearai, Hendrik

Subjects:

600 Technology > 610 Medicine & health

ISSN:

0955-2219

Publisher:

Elsevier

Language:

English

Submitter:

Daniela Huber

Date Deposited:

18 Feb 2016 16:53

Last Modified:

18 Feb 2016 16:53

Publisher DOI:

10.1016/j.jeurceramsoc.2015.02.016

BORIS DOI:

10.7892/boris.75759

URI:

https://boris.unibe.ch/id/eprint/75759

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