Synthesis and electrorheological characteristics of titanate nanotube suspensions under oscillatory shear

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F09%3A63508247" target="_blank" >RIV/70883521:28110/09:63508247 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Synthesis and electrorheological characteristics of titanate nanotube suspensions under oscillatory shear

Popis výsledku v původním jazyce

In this study, titanate nanotubes (TNTs) were synthesized by hydrothermal treatment of TiO2 powders (P25) in a NaOH solution. The as-synthesized TNTs exhibit high surface area and large aspect ratio. Rheological properties of TNTs suspensions were then investigated under oscillatory shear. The TNTs fluid shows the viscoelastic behavior and the dynamic moduli (G0, G00) increase significantly by about 4 orders ofmagnitude as the electric field strength is up to 2.0 kV/mm. Transient response under dynamicshear reveals different changes in the microstructure of TNTs fluid from steady shear. The complex modulus of TNTs fluids is sensitive to temperature while that of P25 fluid become insensitive at higher temperature. Dynamic viscoelastic behavior suggeststhat structure of P25 to TNTs transition merits the enhancement of ER activity of TNTs fluid.

Název v anglickém jazyce

Synthesis and electrorheological characteristics of titanate nanotube suspensions under oscillatory shear

Popis výsledku anglicky

In this study, titanate nanotubes (TNTs) were synthesized by hydrothermal treatment of TiO2 powders (P25) in a NaOH solution. The as-synthesized TNTs exhibit high surface area and large aspect ratio. Rheological properties of TNTs suspensions were then investigated under oscillatory shear. The TNTs fluid shows the viscoelastic behavior and the dynamic moduli (G0, G00) increase significantly by about 4 orders ofmagnitude as the electric field strength is up to 2.0 kV/mm. Transient response under dynamicshear reveals different changes in the microstructure of TNTs fluid from steady shear. The complex modulus of TNTs fluids is sensitive to temperature while that of P25 fluid become insensitive at higher temperature. Dynamic viscoelastic behavior suggeststhat structure of P25 to TNTs transition merits the enhancement of ER activity of TNTs fluid.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BK - Mechanika tekutin

OECD FORD obor

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Projekt

<a href="/cs/project/GA202%2F06%2F0419" target="_blank" >GA202/06/0419: Tvorba elektrorheologických struktur a jejich charakterizace</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2009

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Industrial Engineering Chemistry

ISSN

1226-086X

e-ISSN

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Svazek periodika

15

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

KR - Korejská republika

Počet stran výsledku

5

Strana od-do

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Kód UT WoS článku

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EID výsledku v databázi Scopus

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