Title :
Magnetic probing of dispersion quality of cobalt modified iron oxide particle inks
Author :
Jung, C. ; Raghavan, S. ; Mathur, M.C.A.
Author_Institution :
Dept. of Mater. Sci. & Eng., Arizona Univ., Tucson, AZ, USA
fDate :
11/1/1993 12:00:00 AM
Abstract :
The dispersion quality of magnetic inks made from cobalt modified iron oxide particles using a wetting binder based on vinyl acetate-vinyl chloride copolymer has been investigated using a magnetic probing technique known as DIMAG. The dispersion quality was found to improve with milling time as well as the binder concentration. X-ray photoelectron spectroscopy, (XPS) analysis of the bare and binder treated particles indicated that some sort of a chemical interaction takes place between the binder and the cobalt ions
Keywords :
X-ray photoelectron spectra; cobalt; ferrites; magnetic fluids; magnetic properties of fine particles; magnetic recording; magnetic tapes; Co-Fe2O3; DIMAG; X-ray photoelectron spectroscopy; XPS analysis; binder concentration; chemical interaction; dispersion quality; hand drawn tapes; magnetic inks; magnetic probing technique; magnetic recording; milling time; particle inks; vinyl acetate-vinyl chloride copolymer; wetting binder; Chemical analysis; Cobalt; Coercive force; Ink; Iron; Magnetic field measurement; Materials science and technology; Milling; Pulse measurements; Solvents;
Journal_Title :
Magnetics, IEEE Transactions on
