Elasticity of a Magnetic Fluid in a Strong Magnetic Field

被引：11
|
作者：
Polunin, V. M. [1 ]
Ryapolov, P. A. [1 ]
Platonov, V. B. [1 ]
Sheldeshova, E. V. [1 ]
Karpova, G. V. [1 ]
Aref'ev, I. M. [2 ]
机构：
[1] Southwest State Univ, Ul 50 Let Oktyabrya 94, Kursk 305040, Russia
[2] Ivanovo State Power Engn Univ, Ul Rabfakovskaya 34, Ivanovo 153003, Russia
来源：
ACOUSTICAL PHYSICS | 2017年 / 63卷 / 04期
关键词：
magnetic fluid; oscillation frequency; viscosity; static ponderomotive elasticity coefficient; hydrostatic pressure; saturation magnetization;
D O I：
10.1134/S1063771017040108
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
Complex measurements of the following elastic-magnetic parameters of a magnetic fluid suspended by magnetic levitation within a horizontal tube in a strong magnetic field were performed: the oscillation frequency and decay coefficient; the static, ponderomotive, and dynamic elasticity coefficients; the fluid displacement under hydrostatic pressure; magnetization curve; and the magnetic field strength and gradient. Calculations based on a model of ponderomotive elasticity with correction for the resistance of a viscous fluid in motion and on the fluid column displacement for two magnetic fluid samples agree well with the experimental magnetization curve. The discussed technique holds promise for research into magnetophoresis and nanoparticle aggregation in magnetic colloids.
引用
收藏
页码：416 / 423
页数：8
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