Graphical Magnetogranulometry of EMG909

Titelangaben

Rehberg, Ingo ; Richter, Reinhard ; Hartung, Stefan:
Graphical Magnetogranulometry of EMG909.
Ithaca, NY : Cornell University , 2019 . - 3 S.

Volltext

Link zum Volltext (externe URL):

Abstract

The magnetization curve of the 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.