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Measuring the deformation of a ferrogel sphere in a homogeneous magnetic field

Title data

Gollwitzer, Christian ; Turanov, Alexander ; Krekhova, Marina ; Lattermann, Günter ; Rehberg, Ingo ; Richter, Reinhard:
Measuring the deformation of a ferrogel sphere in a homogeneous magnetic field.
In: The Journal of Chemical Physics. Vol. 128 (2008) Issue 16 . - Eintrag 164709.
ISSN 0021-9606
DOI: https://doi.org/10.1063/1.2905212

Abstract in another language

A sphere of a ferrogel is exposed to a homogeneous magnetic field. In accordance to theoretical predictions, it gets elongated along the field lines. The time dependence of the elastic shear modulus causes the elongation to increase with time, similar to mechanic creep experiments, and the rapid excitation causes the sphere to vibrate. Both phenomena can be well described by a damped harmonic oscillator model. By comparing the elongation along the field to the contraction perpendicular to it, we can calculate Poisson’s ratio of the gel. The magnitude of the elongation is compared to the theoretical predictions for elastic spheres in homogeneous fields.

Further data

Item Type: Article in a journal
Refereed: Yes
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
Faculties
Faculties > Faculty of Mathematics, Physics und Computer Science
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Experimental Physics V
Profile Fields
Profile Fields > Advanced Fields
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 530 Physics
Date Deposited: 26 Sep 2018 10:15
Last Modified: 26 Sep 2018 10:15
URI: https://eref.uni-bayreuth.de/id/eprint/42950