The enhanced magnetorheological performance of carbonyl iron suspensions using magnetic Fe3O4/ZHS hybrid composite sheets

Two-dimensional magnetic Fe 3 O 4 /ZHS hybrid composite sheets were prepared via a two-step microwave-assisted solvothermal synthesis. The successful incorporation of Fe 3 O 4 nanoparticles synthesized in the first step into a zinc hydroxysulfate (ZHS) sheet-like structure formed during the second s...

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Main Authors: Machovský, Michal, Mrlík, Miroslav, Plachý, Tomáš, Ku itka, Ivo, Pavlínek, Vladimír, Ko áková, Zuzana, Kitano, Takeshi
Format: Article
Language:English
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Summary:Two-dimensional magnetic Fe 3 O 4 /ZHS hybrid composite sheets were prepared via a two-step microwave-assisted solvothermal synthesis. The successful incorporation of Fe 3 O 4 nanoparticles synthesized in the first step into a zinc hydroxysulfate (ZHS) sheet-like structure formed during the second synthesis step was confirmed by X-ray diffraction, scanning electron microscopy, and vibrating sample magnetometry. The obtained magnetic Fe 3 O 4 /ZHS hybrid composite particles show a hexagonal and sheet-like morphology. The addition of these sheet-like hybrid composite particles into magnetorheological carbonyl iron-based suspensions results in a significant increase in MR performance. Moreover, this addition considerably contributes to the redispersibility enhancement of prepared suspensions in comparison to those consisting only of bare carbonyl iron particles. The facile two-step microwave-assisted synthesis of Fe 3 O 4 /ZHS hybrid composite sheets with 2D morphology considerably improves the MR performance and suspension redispersibility.
ISSN:2046-2069
DOI:10.1039/c4ra14054k