On the plasma treatment of carbonyl iron particles

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F10%3A63509314" target="_blank" >RIV/70883521:28110/10:63509314 - 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

On the plasma treatment of carbonyl iron particles

Popis výsledku v původním jazyce

Title: On the plasma treatment of carbonyl iron particles and their magnetorheology The long-term stability of magnetorheological (MR) suspensions based on carbonyl iron (CI) in silicone oil can be improved by the plasma treatment of particles surface in50% Ar + 50% octafluorcyclobutane. The X-ray photoelectron spectroscopy revealed that after 2 min of modification about 6.5% of fluorine had been bonded to the surface layer of CI particles. Subsequently, fluorine present on particles can interact withmethyl groups of silicone oil. The rheological behaviour of MR suspensions observed at the steady shear and small-strain oscillatory shear flows showed that systems on the basis of plasma-treated particles exhibit higher viscosity without magnetic fieldand thus improved long-term sedimentation stability. When the magnetic field is applied, the enhanced viscosities of suspensions caused by magnetic interactions between particles have approximately the same values irrespective of employed

Název v anglickém jazyce

On the plasma treatment of carbonyl iron particles

Popis výsledku anglicky

Title: On the plasma treatment of carbonyl iron particles and their magnetorheology The long-term stability of magnetorheological (MR) suspensions based on carbonyl iron (CI) in silicone oil can be improved by the plasma treatment of particles surface in50% Ar + 50% octafluorcyclobutane. The X-ray photoelectron spectroscopy revealed that after 2 min of modification about 6.5% of fluorine had been bonded to the surface layer of CI particles. Subsequently, fluorine present on particles can interact withmethyl groups of silicone oil. The rheological behaviour of MR suspensions observed at the steady shear and small-strain oscillatory shear flows showed that systems on the basis of plasma-treated particles exhibit higher viscosity without magnetic fieldand thus improved long-term sedimentation stability. When the magnetic field is applied, the enhanced viscosities of suspensions caused by magnetic interactions between particles have approximately the same values irrespective of employed

Druh

D - Stať ve sborníku

CEP obor

CD - Makromolekulární chemie

OECD FORD obor

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Projekt

<a href="/cs/project/GD104%2F09%2FH080" target="_blank" >GD104/09/H080: Plazmochemické procesy a jejich technologické aplikace</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2010

Kód důvěrnosti údajů

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

Název statě ve sborníku

International Conference on Advanced Plasma Technologies

ISBN

978-961-90025-9-9

ISSN

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e-ISSN

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Počet stran výsledku

2

Strana od-do

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Název nakladatele

Slovenian Society for Vacuum Technique

Místo vydání

Ljubljana, Slovenia

Místo konání akce

Lake Bohinj, Slovenia

Datum konání akce

1. 1. 2010

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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