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http://yadda.icm.edu.pl:80/baztech/element/bwmeta1.element.baztech-article-BUJ6-0008-0005

Czasopismo

Molecular and Quantum Acoustics

Tytuł artykułu

Investigations of Magnetic Properties of Apg 513a Magnetic Fluid

Autorzy Hornowski, T.  Skumiel, A.  Łabowski, M. 
Treść / Zawartość http://ogpta.polsl.pl/mqa/volumes/
Warianty tytułu
Języki publikacji EN
Abstrakty
EN Static magnetic properties of magnetic fluid APG 513A have been measured. The differential magnetic susceptibility was measured as a function of an external magnetic field in the range of 1-200 kA/m, parallel to the direction of the field. The data were analysed using the Langevin equation and taking into account polydispersity of a system. A lognormal function was used as to approximate the distribution function of the size of magnetic particles. On the basis of the least-square fit of the susceptibility data to the Langevin equation the parameters of the distribution function as well as macroscopic parameters of the ferrofluid such as the initial susceptibility, saturation magnetization and particle number density were obtained. In magneto-granulometric analysis of the ferrofluid the mean magnetic diameter and standard deviation of particles were obtained. The agreement between the susceptibility data and the Langevin equation predictions is very good, which suggests the lack of interactions between particles and the absence of agglomerates in the ferrofluid studied.
Słowa kluczowe
EN magnetic liquids   magnetization curve   ultrasonic attenuation  
Wydawca Silesian Division of Polish Acoustical Society
Czasopismo Molecular and Quantum Acoustics
Rocznik 2004
Tom Vol. 25
Strony 115--120
Opis fizyczny Bibliogr. 6 poz., rys.
Twórcy
autor Hornowski, T.
autor Skumiel, A.
autor Łabowski, M.
  • Institute of Acoustics, Adam Mickiewicz University ul. Umultowska 85, 61-614 Poznań, hornaku@amu.edu.pl
Bibliografia
Kolekcja BazTech
Identyfikator YADDA bwmeta1.element.baztech-article-BUJ6-0008-0005
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