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Mehāniskās deformācijas izraisītas maiņstrāvas vadāmības izmaiņas poliizoprēna / nanostrukturēta oglekļa kompozītos

Authors: Ozols, K; Knite, M;

Mehāniskās deformācijas izraisītas maiņstrāvas vadāmības izmaiņas poliizoprēna / nanostrukturēta oglekļa kompozītos

Abstract

Daudzas zinātnieku grupas izstrādā un testē polimēru/elektrovadošu nanodaļiņu kompozītus pielietojumam dažādos sensoros. Mūsu darbs tika veikts, lai varētu labāk optimizēt poliizoprēna/nanostrukturētu oglekļa kvēpu (PNOK) kompozītus pielietojumam sensoros, veicot vadāmības relatīvo izmaiņu (VRI) mērījumus maiņstrāvas režīmā atkarībā no kompozītu mehāniskās deformācijas. PNOK paraugi ar dažādu nanostrukturētu oglekļa kvēpu pildvielas daudzumu tika testēti frekvenču diapazonā no 20 Hz līdz 2 MHz. Mērījumi parādīja, ka VRI maksimums PNOK paraugiem ar zemu oglekļa pildvielas daudzumu (4-5 masas daļas nanostrukturētu oglekļa kvēpu uz 100 masas daļām poliizoprēna) atrodas tikai pie pašām zemākajām mērītajām frekvencēm, bet PNOK paraugi ar augstu pildvielas koncentrāciju (8-10 masas daļas pildvielas) uzrādīja plašu, nemainīga lieluma VRI plato līdz vismaz 10 kHz.

Country
Latvia
Related Organizations
Keywords

piezoresistance, carbon black composite

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    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
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