Title :
Reversible field induced agglomeration in magnetic liquids
Author :
Jones, G.A. ; Moman, A.
Author_Institution :
Dept. of Pure & Appl. Phys., Salford Univ., UK
fDate :
9/1/1990 12:00:00 AM
Abstract :
Agglomeration effects have been produced in decalin-based magnetite and water-based lignosite magnetic liquids by the application of fields normal to a thin layer of the fluids. Their formation with time has been observed as a function of field and concentration. Conclusions about the stability of the liquids are drawn. It is concluded that field-induced destabilization is a complex phenomenon which involves the aggregation of elementary particles into what become, ultimately, visible macrochains. It is observed that an applied field is required to provoke destabilization
Keywords :
aggregation in substances; magnetic fluids; aggregation; decalin-based magnetite; field-induced destabilization; reversible field induced agglomeration; stability; visible macrochains; water-based lignosite magnetic liquids; Large-scale systems; Magnetic force microscopy; Magnetic liquids; Magnetic separation; Optical microscopy; Optical saturation; Physics; Saturation magnetization; Stability; Transmission electron microscopy;
Journal_Title :
Magnetics, IEEE Transactions on
