Novel synthesis of core-shell urchin-like ZnO coated carbonyl iron microparticles and their magnetorheological activity

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28610%2F14%3A43871346" target="_blank" >RIV/70883521:28610/14:43871346 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1039/c3ra44982c" target="_blank" >http://dx.doi.org/10.1039/c3ra44982c</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/c3ra44982c" target="_blank" >10.1039/c3ra44982c</a>

Result language

angličtina

Original language name

Novel synthesis of core-shell urchin-like ZnO coated carbonyl iron microparticles and their magnetorheological activity

Original language description

The overall stability (thermo-oxidation, sedimentation) of MR suspensions is a crucial problem decreasing their potential applicability in real life. In this study the unique functional coating of carbonyl iron (CI) particles with ZnO structures was presented in order to develop a new MR suspension based on the core-shell ZnO/CI urchin-like dispersed particles. The two-step synthesis provides the suitable core-shell particles with improved sedimentation and also thermo-oxidation stability. Moreover, dueto the enhanced sedimentation stability core-shell based suspensions exhibit higher values of the yield stress than those of bare CI based suspensions at 20 wt% particle concentration. The suspension with 60 wt% particle concentration reaches values ofthe yield stress around 2.2 kPa at 272 mT. The excellent MR efficiency of the core-shell ZnO/CI based suspension at elevated temperatures was observed. Finally, the dimorphic particle based suspension was prepared when the ratio between t

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CD - Macromolecular chemistry

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

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2014

Confidentiality

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

Name of the periodical

RSC Advances: an international journal to further the chemical sciences

ISSN

2046-2069

e-ISSN

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Volume of the periodical

4

Issue of the periodical within the volume

2

Country of publishing house

GB - UNITED KINGDOM

Number of pages

8

Pages from-to

996-1003

UT code for WoS article

000327849700065

EID of the result in the Scopus database

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