Title :
The effect of oleic acid on the stability of magnetite ferrofluid
Author :
Dababneh, M.S. ; Ayoub, N.Y.
Author_Institution :
Dept. of Phys., Yarmouk Univ., Irbid, Jordan
fDate :
11/1/1995 12:00:00 AM
Abstract :
We study the stability of diluted samples of Fe3O4 ferrofluid under the action of gravitational field, uniform magnetic field and gradient magnetic field. The dilution was carried out by adding carrier liquid to the ratio (40:1) to the undiluted sample which has a concentration (packing fraction) ε0=0.154. The samples under study were prepared from the diluted sample and adding oleic acid by volume (0%, 4%, 14%, 20%, 30% and 40%). The results show that at 12% oleic acid ratio the samples have the better stability at all fields under study
Keywords :
ferromagnetic materials; iron compounds; magnetic field effects; magnetic fluids; stability; suspensions; Fe3O4; dilution; gradient magnetic field; gravitational field action; magnetite ferrofluid; oleic acid; stability; suspended single domain particles; uniform magnetic field; Coils; Frequency dependence; Magnetic liquids; Magnetic materials; Magnetic susceptibility; Oscillators; Petroleum; Saturation magnetization; Stability; Temperature dependence;
Journal_Title :
Magnetics, IEEE Transactions on
