Interaction of metal particles for magnetic recording with media formulation components
- 15 April 1991
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 69 (8) , 4481-4483
- https://doi.org/10.1063/1.348358
Abstract
The interaction of commercially available, iron-based magnetic particles with certain particulate media formulation components has been investigated using the technique of flow microcalorimetry. The heat of wetting of these particles by solvents has been found to be a function of the solvent dipole moment and particle coercivity and surface area. Di(2-ethyl hexyl) phosphoric acid, a model dispersant, appears to interact chemically with a particle of high coercivity. Solvent basicity influences the heat and extent of interaction of the dispersant.This publication has 3 references indexed in Scilit:
- Surface and colloid chemical studies of gamma iron oxides for magnetic memory mediaColloids and Surfaces, 1988
- A flow microcalorimetric investigation of the acidity of chromium dioxide and γ-iron oxideColloids and Surfaces, 1988
- Morphology and magnetic properties of the iron oxide layer formed on iron acicular particlesIEEE Transactions on Magnetics, 1986