Thermal behavior and cluster formation of ferromagnetic particles in magnetic fluids

2002 ◽  
Vol 14 (1-4) ◽  
pp. 443-446 ◽  
Author(s):  
Toshihide Tachibana ◽  
Hiroshige Kikura ◽  
Mitsuo Matsuzaki ◽  
Gentaro Yamanaka ◽  
Masanori Aritomi ◽  
...  
Keyword(s):  
Thermal Behavior ◽  
Cluster Formation ◽  
Magnetic Fluids ◽  
Ferromagnetic Particles

Morphology of cluster formation in magnetic fluids

1999 ◽  
Vol 201 (1-3) ◽  
pp. 238-241 ◽  
Author(s):  
Eugenia Tulcan ◽  
Victor Sofonea
Keyword(s):  
Cluster Formation ◽  
Magnetic Fluids

scholarly journals ON SOME FUČÍK TYPE PROBLEM WITH CUBIC NONLINEARITY ADI APPROACH TO THE PARTICLE DIFFUSION PROBLEM IN MAGNETIC FLUIDS

2011 ◽  
Vol 16 (1) ◽  
pp. 62-71 ◽  
Author(s):  
V. Polevikov ◽  
L. Tobiska
Keyword(s):  
Neumann Boundary ◽  
Magnetic Fluids ◽  
Diffusion Problem ◽  
Second Order ◽  
Particle Diffusion ◽  
Type Problem ◽  
Cubic Nonlinearity ◽  
Order Accuracy ◽  
Second Order In Time ◽  
Ferromagnetic Particles

The present study is devoted to the development of an ADI approach to simulate two-dimensional time-dependent diffusion process of ferromagnetic particles in magnetic fluids. Specific features of the problem are the Neumann boundary conditions. We construct an ADI scheme of formally second order accuracy approximation in time and space. It is proved that the scheme is absolutely stable and it has the accuracy in the energy norm of the second order in time and the order 3/2 in space. The numerical results of a test problem indicate that the convergence rate in space is of the second order as well.

STATISTICAL ANALYSIS OF CLUSTER STRUCTURES FORMED BY DIPOLE-DIPOLE INTERACTIONS

2001 ◽  
Vol 15 (06n07) ◽  
pp. 912-917
Author(s):  
HISAO MORIMOTO ◽  
TORU MAEKAWA
Keyword(s):  
Magnetic Field ◽  
Fractal Dimension ◽  
Magnetic Dipole Moment ◽  
Control Parameter ◽  
Cluster Formation ◽  
Three Dimensional ◽  
Fractal Dimensions ◽  
Dipole Interactions ◽  
High Fractal Dimension ◽  
Ferromagnetic Particles

We developed a statistical model of the cluster formation of ferromagnetic particles and analysed the cluster structures. We investigated the effect of the control parameter λ, that is, the ratio of magnetic dipole moment energy to thermal energy, and external magnetic fields on the fractal dimensions of three-dimensional ferromagnetic clusters. We found that the fractal dimension of clusters, D, changes from 5/3 to 2 as λ increases in the absence of a magnetic field. We also found that when clusters are subjected to a magnetic field, the fractal dimension decreases and the transition region from high fractal dimension to D=1 becomes shorter as λ increases.

Visualization of clustering on nonmagnetic and ferromagnetic particles in magnetic fluids

1999 ◽  
Author(s):  
Tatsuo Sawada ◽  
Hiroshiga Kikura ◽  
Gentaro Yamanaka ◽  
Mitsuo Matsuzaki ◽  
Masanori Aritomi ◽  
...  
Keyword(s):  
Magnetic Fluids ◽  
Ferromagnetic Particles

Use of the photoacoustic spectroscopy in the investigation of biocompatible magnetic fluids

2005 ◽  
Vol 125 ◽  
pp. 27-30 ◽  
Author(s):  
J. G. Santos ◽  
L. B. Silveira ◽  
A. C. Oliveira ◽  
P. C. Morais
Keyword(s):  
Photoacoustic Spectroscopy ◽  
Magnetic Fluids

Magnetic fluids

1974 ◽  
Vol 112 (3) ◽  
pp. 427 ◽  
Author(s):  
M.I. Shliomis
Keyword(s):  
Magnetic Fluids
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