Acoustical properties of magnetorheological fluids under applied magnetic field

被引：9
|
作者：
Baev, Aliaksei R. [1 ]
Korobko, Evguenia V. [1 ]
Novikova, Zoya A. [1 ]
机构：
[1] Natl Acad Sci Belarus, AV Luikov Heat & Mass Transfer Inst, Lab Rheophys & Macrokinet, Minsk 220072, BELARUS
来源：
JOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES | 2015年 / 26卷 / 14期
关键词：
Magnetorheological fluid; ultrasonic velocity; attenuation coefficient; anisotropy; ATTENUATION;
D O I：
10.1177/1045389X15586448
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This work is devoted to the experimental study of acoustical properties of magnetorheological fluids subjected to magnetic field. Evaluation of the change in velocity of ultrasonic waves and attenuation coefficients in magnetorheological fluids based on synthetic oil and carbonyl iron versus magnitude and angle phi between wave vector and intensity direction of applied magnetic field has been carried out by pulse-phase method at 1.52 and 2.5MHz. It was found that the anisotropy of attenuation coefficient was similar to 5-6dB/cm and the velocity of ultrasonic waves was up to similar to 1%-2% that is much more than in specimens of colloid solutionsmagnetic fluids with the same dispersive phase content.
引用
收藏
页码：1913 / 1919
页数：7
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