eprintid: 11165
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/01/11/65
datestamp: 2023-11-10 03:25:42
lastmod: 2023-11-10 03:25:42
status_changed: 2023-11-10 01:14:36
type: article
metadata_visibility: show
creators_name: Aziz, S.A.A.
creators_name: Mazlan, S.A.
creators_name: Ubaidillah, U.
creators_name: Shabdin, M.K.
creators_name: Yunus, N.A.
creators_name: Nordin, N.A.
creators_name: Choi, S.-B.
creators_name: Rosnan, R.M.
title: Enhancement of viscoelastic and electrical properties of magnetorheological elastomers with nanosized Ni-Mg cobalt-ferrites as fillers
ispublished: pub
keywords: Binary alloys; Cobalt; Elastomers; Electric resistance; Ferrites; Fillers; Flexible structures; Iron compounds; Magnetism; Plastics; Rheology; Viscoelasticity, Carbon-based; Cobalt ferrites; Conductivity properties; Electrical resistances; Hetero-aggregation; Magnetorheological elastomers; Nanosized ni-mg cobalt ferrite; Resistivity; Rheological property; Viscoelastics, Scanning electron microscopy
note: cited By 15
abstract: Carbon-based particles, such as graphite and graphene, have been widely used as a filler in magnetorheological elastomer (MRE) fabrication in order to obtain electrical properties of the material. However, these kinds of fillers normally require a very high concentration of particles to enhance the conductivity property. Therefore, in this study, the nanosized Ni-Mg cobalt ferrite is introduced as a filler to soften MRE and, at the same time, improve magnetic, rheological, and conductivity properties. Three types of MRE samples without and with different compositions of Mg, namely Co0.5Ni0.2Mg0.3Fe2O4 (A1) and Co0.5Ni0.1Mg0.4Fe2O4 (A2), are fabricated. The characterization related to the micrograph, magnetic, and rheological properties of the MRE samples are analyzed using scanning electron microscopy (SEM), vibrating sample magnetometer (VSM), and the rheometer. Meanwhile, the effect of the nanosized Ni-Mg cobalt ferrites on the electrical resistance property is investigated and compared with the different Mg compositions. It is shown that the storage modulus of the MRE sample with the nanosized Ni-Mg cobalt ferrites is 43 higher than that of the MRE sample without the nanomaterials. In addition, it is demonstrated that MREs with the nanosized Ni-Mg cobalt ferrites exhibit relatively low electrical resistance at the on-state as compared to the off-state condition, because MRE with a higher Mg composition shows lower electrical resistance when higher current flow occurs through the materials. This salient property of the proposed MRE can be effectively and potentially used as an actuator to control the viscoelastic property of the magnetic field or sensors to measure the strain of the flexible structures by the electrical resistance signal. © 2019 by the authors.
date: 2019
publisher: MDPI
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85074663625&doi=10.3390%2fma12213531&partnerID=40&md5=7bea20b89923794e79fee1434b8328d7
id_number: 10.3390/ma12213531
full_text_status: none
publication: Materials
volume: 12
number: 21
refereed: TRUE
issn: 19961944
citation:   Aziz, S.A.A. and Mazlan, S.A. and Ubaidillah, U. and Shabdin, M.K. and Yunus, N.A. and Nordin, N.A. and Choi, S.-B. and Rosnan, R.M.  (2019) Enhancement of viscoelastic and electrical properties of magnetorheological elastomers with nanosized Ni-Mg cobalt-ferrites as fillers.  Materials, 12 (21).   ISSN 19961944