Magnetic characterisation of metal particle pigment dispersions II

Author

Mayo, P.I. ; O´Grady, K.

Author_Institution

SEECS, Univ. Coll. of North Wales, Bangor, UK

Volume

29

Issue

6

fYear

1993

fDate

11/1/1993 12:00:00 AM

Firstpage

3640

Lastpage

3642

Abstract

For pt.I, see ibid., vol. 28, p.2374-6 (1992). The authors report on a continued investigation of particle dispersion characterization using magnetic measurement techniques. A fully automated vibrating sample magnetometer (VSM) was used to measure the reverse demagnetization remanence curves of a wet metal particle dispersion as a function of dispersion milling time. Theoretical interpretation of the data using a Brownian motion relaxation mechanism indicates that increases in milling time significantly reduce the mean size of the particle aggregates

Keywords

Brownian motion; alumina; demagnetisation; iron; magnetic properties of fine particles; magnetic recording; magnetic variables measurement; particle size; remanence; Brownian motion relaxation mechanism; Fe-Al₂O₃; VSM; automated vibrating sample magnetometer; dispersion milling time; magnetic characterisation; magnetic measurement techniques; magnetic recording; magnetisation; metal particle pigment dispersions; particle aggregates mean size; reverse demagnetization remanence curves; wet metal particle dispersion; Demagnetization; Dispersion; Magnetic variables measurement; Magnetometers; Milling; Particle measurements; Pigmentation; Remanence; Time measurement; Vibration measurement;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.281255

Filename

281255