Graphical Magnetogranulometry of EMG909
Soft Condensed Matter
2022-03-30 v2
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.
Keywords
Cite
@article{arxiv.1907.12779,
title = {Graphical Magnetogranulometry of EMG909},
author = {Ingo Rehberg and Reinhard Richter and Stefan Hartung},
journal= {arXiv preprint arXiv:1907.12779},
year = {2022}
}