Enhanced magnetic response of fluids using self-assembled petal-like iron oxide particles

被引：8

作者：

Son, You-Hwan ^{[1
]}

Lee, Jung-Kun ^{[1
]}

Soong, Yee ^{[2
]}

Martello, Donald ^{[2
]}

Chyu, Minking ^{[1
]}

机构：

[1] Univ Pittsburgh, Dept Mech Engn & Mat Sci, Pittsburgh, PA 15261 USA

[2] Natl Energy Technol Lab, Pittsburgh, PA 15261 USA

来源：

APPLIED PHYSICS LETTERS | 2010年 / 96卷 / 12期

关键词：

iron compounds; magnetic fluids; magnetic particles; nanoparticles; self-assembly; viscoelasticity; SIZE-CONTROLLED SYNTHESIS; MAGNETORHEOLOGICAL FLUIDS; WATER-TREATMENT; NANOPARTICLES;

D O I：

10.1063/1.3371713

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Using self-assembled iron oxide (SAIO) particles with petal-like morphology, aqueous fluids containing magnetic particles were prepared and the effect of hierarchical particle surface on the viscoelasticity under magnetic was investigated. The fluids consisting of self-assembled iron oxide particles exhibit highly tunable viscoelasticity which is controlled by applying external magnetic field. A difference between SAIO particles and spherical particles is explained by the fact that surface features of the self-assembled particles increased the network strength between particles in the fluids.

引用

页数：3

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