Acoustic properties of PEG biocompatible magnetic fluid under perpendicular magnetic field

被引：12

作者：

Józefczak, A ^{[1
]}

机构：

[1] Adam Mickiewicz Univ Poznan, Inst Acoust, PL-61614 Poznan, Poland

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2005年 / 293卷 / 01期

关键词：

magnetic fluid; ultrasonic absorption; polyethylene glycol; acoustic properties;

D O I：

10.1016/j.jmmm.2005.02.016

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Biocompatible magnetic fluids of nanoparticles, coated with polyethylene glycol show stable acoustic properties up to a field intensity of H = 70 kA/m. In higher fields, the ultrasonic wave absorption coefficient significantly increases and is strongly dependent on temperature, magnetic field intensity, magnetic field sweep rate and time of exposure to magnetic field. Adjustment of these parameters leads to control of the acoustic properties of the magnetic ferrofluids. (c) 2005 Elsevier B.V. All rights reserved.

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页码：240 / 244

页数：5

相关论文

共 9 条

[1] THE TIME-DEPENDENCE OF PARTICLE AGGREGATION IN MAGNETIC FLUID LAYERS [J].

CERNAK, J ;

MACKO, P .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1993, 123 (1-2) :107-116

[2] A double-coated magnetite-based magnetic fluid evaluation by cytometry and genetic tests [J].

Freitas, MLL ;

Silva, LP ;

Azevedo, RB ;

Garcia, VAP ;

Lacava, LM ;

Grisólia, CK ;

Lucci, CM ;

Morais, PC ;

Da Silva, MF ;

Buske, N ;

Curi, R ;

Lacava, ZGM .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2002, 252 (1-3) :396-398

[3] Ordered structures in Fe3O4 kerosene-based ferrofluids [J].

Hong, CY ;

Jang, IJ ;

Horng, HE ;

Hsu, CJ ;

Yao, YD ;

Yang, HC .

JOURNAL OF APPLIED PHYSICS, 1997, 81 (08) :4275-4277

[4] Effects of the sweep rate of the applied field on the agglomeration of magnetic particles in magnetic fluid film [J].

Horng, HE ;

Yang, SY ;

Chen, CH ;

Chiu, YP ;

Chen, JA ;

Hong, CY ;

Yang, HC .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2001, 226 :1884-1886

[5] Effects of the sweep rate of the magnetic field on the changes of ultrasonic wave velocity in magnetic fluid [J].

Józefczak, A ;

Skumiel, A ;

Labowski, M .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2003, 258 :474-476

[6] Hysteresis of changes of ultrasonic wave absorption coefficient in a magnetic fluid caused by the magnetic field [J].

Józefczak, A ;

Labowski, M ;

Skumiel, A .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2002, 252 (1-3) :356-359

[7] The time dependence of the changes of ultrasonic wave velocity in ferrofluid under parallel magnetic field [J].

Józefczak, A .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2003, 256 (1-3) :267-270

[8] A rheometer dedicated for the investigation of viscoelastic effects in commercial magnetic fluids [J].

Odenbach, S ;

Rylewicz, T ;

Heyen, M .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1999, 201 :155-158

[9]

SKUMIEL A, 1997, ULTRASONICS, V36, P421