Dispersion quality of metal particle inks measured by a magnetic probing technique and its relation to tape quality

Author

Jung, C. ; Raghavan, S. ; Mathur, M.C.A.

Author_Institution

Dept. of Mater. Sci. & Eng., Arizona Univ., Tucson, AZ, USA

Volume

28

Issue

5

fYear

1992

fDate

9/1/1992 12:00:00 AM

Firstpage

2371

Lastpage

2373

Abstract

The dispersion quality of magnetic inks made from iron-based metal particle has been investigated using a magnetic probing technique known as dispersion by magnetic measurement (DIMAG). A comparison of the DC magnetic field (DCON) values measured at different binder levels to the tape characteristics shows that dispersions with large negative DCON signals result in good-quality tapes. The DIMAG technique is useful in a qualitative characterization of the dispersion quality of metal particle inks prepared at different wetting binder concentrations. The sensitivity of the DIMAG signal to the binder level and the correlation between the DIMAG signal and tape quality imply that the DIMAG technique has the potential of providing information on optimum ink formulations

Keywords

magnetic fluids; magnetic properties of fine particles; magnetic tapes; DC magnetic field; dispersion by magnetic measurement; dispersion quality; magnetic inks; magnetic probing technique; metal particle inks; optimum ink formulations; tape quality; Coils; Dispersion; Helium; Ink; Iron; Magnetic fields; Magnetic moments; Magnetic separation; Materials science and technology; Particle measurements;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.179495

Filename

179495