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The enhanced MR performance of dimorphic MR suspensions containing either magnetic rods or their non-magnetic analogs

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dc.title The enhanced MR performance of dimorphic MR suspensions containing either magnetic rods or their non-magnetic analogs en
dc.contributor.author Plachý, Tomáš
dc.contributor.author Cvek, Martin
dc.contributor.author Kožáková, Zuzana
dc.contributor.author Sedlačík, Michal
dc.contributor.author Moučka, Robert
dc.relation.ispartof Smart Materials and Structures
dc.identifier.issn 0964-1726 Scopus Sources, Sherpa/RoMEO, JCR
dc.date.issued 2017
utb.relation.volume 26
utb.relation.issue 2
dc.type article
dc.language.iso en
dc.publisher Institute of Physics Publishing
dc.identifier.doi 10.1088/1361-665X/aa56ef
dc.relation.uri http://iopscience.iop.org/article/10.1088/1361-665X/aa56ef/meta;jsessionid=E933EF728BF805ED03FA5ED98DFAB631.c1.iopscience.cld.iop.org
dc.subject dimorphic fluid en
dc.subject ferrous oxalate en
dc.subject iron oxide en
dc.subject magnetorheological effect en
dc.subject magnetorheology en
dc.subject morphology en
dc.subject sedimentation stability en
dc.description.abstract A co-precipitation method was used to prepare non-magnetic rod-like ferrous oxalate dihydrate (Fe2CO4 • 2H2O) particles that were further turned into iron oxide (Fe3O4) magnetic rod-like particles. A simple precursor-assisted thermal decomposition technique enabled the preservation of the morphology and size of the precursor ferrous oxalate dihydrate particles, thus allowing their magnetic analogs to be obtained. Both types of rod-like particles were used as an additive together with spherical carbonyl iron (CI) particles in novel dimorphic magnetorheological (MR) suspensions. Controlled shear rate mode experiments were performed using a rotational rheometer with a source of an external magnetic field in order to investigate their MR behavior. Moreover, the properties of the novel prepared dimorphic MR (DMR) suspensions were compared with conventional MR suspensions based on spherical CI microparticles. It was found that the DMR suspensions exhibit enhanced MR performance as well as enhanced sedimentation stability in comparison with the MR suspension based on pure CI. The dimorphic suspensions containing magnetic rod-like additives further exhibited significant MR hardening at low shear rates. The properties of CI-based suspensions can be thus optimized by using various additive substances. © 2017 IOP Publishing Ltd. en
utb.faculty University Institute
dc.identifier.uri http://hdl.handle.net/10563/1006902
utb.identifier.obdid 43877201
utb.identifier.scopus 2-s2.0-85011347233
utb.identifier.wok 000395418400004
utb.identifier.coden SMSTE
utb.source j-scopus
dc.date.accessioned 2017-06-27T08:13:11Z
dc.date.available 2017-06-27T08:13:11Z
dc.description.sponsorship MOE, Ministry of Education
dc.description.sponsorship Ministry of Education [LO1504]; Operational Program Research and Development for Innovations-European Regional Development Fund (ERDF); national budget of the Czech Republic, within the framework of the project CPS - strengthening research capacity [CZ.1.05/2.1.00/19.0409]
utb.ou Centre of Polymer Systems
utb.contributor.internalauthor Plachý, Tomáš
utb.contributor.internalauthor Cvek, Martin
utb.contributor.internalauthor Kožáková, Zuzana
utb.contributor.internalauthor Sedlačík, Michal
utb.contributor.internalauthor Moučka, Robert
utb.fulltext.affiliation Tomas Plachy, Martin Cvek, Zuzana Kozakova, Michal Sedlacik and Robert Moucka Centre of Polymer Systems, University Institute, Tomas Bata University in Zlin, Trida Tomase Bati 5678, 760 01 Zlin, Czech Republic E-mail: plachy@cps.utb.cz
utb.fulltext.dates Received 8 September 2016, revised 14 December 2016 Accepted for publication 5 January 2017 Published 24 January 2017
utb.fulltext.sponsorship This work was supported by the Ministry of Education, Youth and Sports of the Czech Republic—Program NPU I (LO1504). This articles was written with the support of Operational Program Research and Development for Innovations co-funded by the European Regional Development Fund (ERDF) and national budget of the Czech Republic, within the framework of the project CPS – strengthening research capacity (reg. number: CZ.1.05/2.1.00/19.0409).
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