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Graphical Magnetogranulometry of EMG909

Title data

Rehberg, Ingo ; Richter, Reinhard ; Hartung, Stefan:
Graphical Magnetogranulometry of EMG909.
In: Journal of Magnetism and Magnetic Materials. Vol. 508 (15 August 2020) . - Art.Nr. 166868.
ISSN 0304-8853
DOI: https://doi.org/10.1016/j.jmmm.2020.166868

Abstract in another language

The magnetization curve of the commercially available ferrofluid EMG909 is measured. It can adequately be
described by a superposition of four Langevin terms. The effective dipole strength of the magnetic particles in
this fluid is subsequently obtained by a graphical rectification of the magnetization curve based on the inverse
Langevin function. The method yields the arithmetic and the harmonic mean of the magnetic moment distribution
function, and a guess for the geometric mean and the relative standard deviation. It has the advantage
that it does not require a prejudiced guess of the distribution function of the poly-disperse suspension of magnetic particles.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: Ferrofluid; Magnetogranulometry; Inverse Langevin function; Ferrofluid EMG909 from Ferrotec Co.
Institutions of the University: Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Experimental Physics V > Chair Experimental Physics V - Univ.-Prof. Dr. Ingo Rehberg
Profile Fields > Advanced Fields > Nonlinear Dynamics
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 530 Physics
Date Deposited: 09 Apr 2020 07:41
Last Modified: 09 Apr 2020 07:41
URI: https://eref.uni-bayreuth.de/id/eprint/54877