Rheological properties of soft magnetic flake shaped iron particle based magnetorheological fluid in dynamic mode

磁流变液 鳞片 流变学 材料科学 粒子(生态学) 复合材料 磁粉探伤 模式(计算机接口) 磁性纳米粒子 结构工程 纳米颗粒 计算机科学 工程类 地质学 纳米技术 阻尼器 海洋学 操作系统
作者
R.V. Upadhyay,Zarana Laherisheth,Kruti Shah
出处
期刊:Smart Materials and Structures [IOP Publishing]
卷期号:23 (1): 015002-015002 被引量:81
标识
DOI:10.1088/0964-1726/23/1/015002
摘要

In this work, the effect of particle shape (flakes) on the magnetorheological (MR) properties of an iron based MR fluid, constituted of two different volume fractions of particles dispersed in a liquid carrier, is studied. To compare the MR effect, spherical iron carbonyl particle based MR fluid is studied. In both MR fluids, linear viscoelastic behavior has been extensively investigated using small amplitude oscillatory analysis and magnetic sweep tests, in the presence and absence of a magnetic field (H). The amplitude sweep tests reveal that flake-based MR fluid shows a higher storage modulus compared to sphere-based MR fluid and saturates at a lower magnetic field strength. The variation of storage modulus with magnetic field strength shows an Hn dependence, where n varies from 2.2 to 2.4 for 20% volume fraction while it varies from 1.6 to 2 for a dilute sample. In the case of sphere-based MR fluid, at 20% volume fraction the variation of storage modulus is nearly linear with the magnetic field at low strain amplitude, and with increasing strain amplitude shows H2 dependence. At lower volume fraction in both cases, the loss modulus increases linearly with the magnetic field strength. The observed enhancement in the MR effect in the flake-based MR fluid is likely due to the stronger particle–particle interaction which results in higher friction between the particles. The sedimentation rate decreases by nearly 50% when flakes are used. The study reveals that one can use the irregular shaped particles for MR applications at low fields (~80 kA m−1).
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
机械师简完成签到,获得积分10
刚刚
归尘发布了新的文献求助10
刚刚
刚刚
英姑应助fc小肥杨采纳,获得10
刚刚
1秒前
weihe完成签到 ,获得积分10
1秒前
CipherSage应助哈哈哈哈哈采纳,获得10
2秒前
无花果应助赵小超采纳,获得10
2秒前
派先生发布了新的文献求助20
3秒前
kkkkk发布了新的文献求助10
4秒前
4秒前
Lucas应助畅快的涵蕾采纳,获得10
4秒前
5秒前
5秒前
KM比比完成签到,获得积分10
5秒前
5秒前
5秒前
5秒前
汉堡包应助ewetylgkhlj采纳,获得10
6秒前
曾志伟完成签到,获得积分10
6秒前
6秒前
田様应助zxm采纳,获得10
7秒前
7秒前
7秒前
充电宝应助淡定白枫采纳,获得10
7秒前
8秒前
xiaoxiaojiang发布了新的文献求助10
8秒前
豆豆关注了科研通微信公众号
8秒前
9秒前
彭于晏应助HighFeng_Lei采纳,获得10
9秒前
9秒前
流星也醉酒完成签到 ,获得积分10
10秒前
xm完成签到,获得积分10
10秒前
biubiu完成签到 ,获得积分10
10秒前
共享精神应助章半仙采纳,获得10
10秒前
10秒前
NexusExplorer应助CX采纳,获得10
11秒前
11秒前
11秒前
zhxhh发布了新的文献求助10
12秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
Technical Brochure TB 814: LPIT applications in HV gas insulated switchgear 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Picture Books with Same-sex Parented Families: Unintentional Censorship 500
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
不知道标题是什么 500
A Preliminary Study on Correlation Between Independent Components of Facial Thermal Images and Subjective Assessment of Chronic Stress 500
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3970572
求助须知:如何正确求助?哪些是违规求助? 3515219
关于积分的说明 11177438
捐赠科研通 3250374
什么是DOI,文献DOI怎么找? 1795265
邀请新用户注册赠送积分活动 875750
科研通“疑难数据库(出版商)”最低求助积分说明 805054