eprintid: 12343
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/01/23/43
datestamp: 2023-11-10 03:26:53
lastmod: 2023-11-10 03:26:53
status_changed: 2023-11-10 01:48:35
type: article
metadata_visibility: show
creators_name: Norhaniza, R.
creators_name: Mazlan, S.A.
creators_name: Ubaidillah, 
creators_name: Abdul Aziz, S.A.
creators_name: Nazmi, N.
creators_name: Yunus, N.A.
title: Enhancement of sensitivity of magnetostrictive foam in low magnetic fields for sensor applications
ispublished: pub
keywords: Magnetic fields, Carbonyl iron particles; In-situ fabrication; Low magnetic fields; Magnetostrictive material; Magnetostrictive strain; Sensor applications; Sensor technologies; Strong magnetic fields, Magnetostrictive devices
note: cited By 9
abstract: Magnetostrictive materials are usually used in sensor technology since they are sensitive to magnetization and strain. Unfortunately, to date, only a few magnetostrictive materials are being used, as the need for a strong magnetic field (1 T) and not sensitive at a low magnetic field. Thus, in this study, a new magneto-active (MA) polyurethane foam was fabricated to obtain a strain at a low magnetic field corresponding to below 1 T. The in-situ fabrication of the MA foam was carried out with various compositions of carbonyl iron particles (CIPs), particularly at 35, 45, 55, 65 and 75 wt. An analysis of the magnetic properties revealed that all the MA foams showed high magnetic saturation with low remanence values. Furthermore, the MA foam of 75 wt showed the highest magnetostrictive strain of 1.66 at 0.45 T. The sensitivity of the MA foam is 0.0146/mT with 42 of improvement. Analyses show MA foam of 75 wt had a low density, biggest pores and long struts that might have led to high flexibility for elongation to produce a high strain percentage within the practical magnetic field range. Hence, this MA foam can be further utilized for sensor applications. © 2020 Elsevier Ltd
date: 2020
publisher: Elsevier Ltd
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85091894754&doi=10.1016%2fj.polymer.2020.123083&partnerID=40&md5=645b037160c28654f312f7766ec00720
id_number: 10.1016/j.polymer.2020.123083
full_text_status: none
publication: Polymer
volume: 211
refereed: TRUE
issn: 00323861
citation:   Norhaniza, R. and Mazlan, S.A. and Ubaidillah and Abdul Aziz, S.A. and Nazmi, N. and Yunus, N.A.  (2020) Enhancement of sensitivity of magnetostrictive foam in low magnetic fields for sensor applications.  Polymer, 211.   ISSN 00323861