Sign up & Download
Sign in

Barium hexaferrite suspensions for electrophoretic deposition

by Simona Ovtar, Darja Lisjak, Miha Drofenik
Journal of Colloid and Interface Science ()

Abstract

In this investigation we have looked at the preparation of barium hexaferrite suspensions, with the stability of the magnetic barium hexaferrite particles being increased by the addition of a surfactant, dodecylbenzylsulfonic acid (DBSA). The influence of the solubility DBSA in different solvents and its adsorption onto the surfaces of particles with different sizes were determined from zeta-potential measurements. The most suitable and stable suspensions of barium hexaferrite particles, regardless of their sizes, were obtained in 1-butanol, and these were then used for a subsequent electrophoretic deposition. The microstructures of the deposits were examined with electron microscopy. The thickness and density of the deposits as a function of the electric field, the zeta-potential, the particle size, and the separation distance between the electrodes were investigated. The thickness of the deposits was found to increase with the increasing zeta-potential of the suspension and with the increasing separation distance between the electrodes. Denser deposits were obtained from the suspensions of smaller particles that had narrower particle size distributions. ?? 2009 Elsevier Inc. All rights reserved.

Cite this document (BETA)

Page 1
hidden
Page 2
hidden

Readership Statistics

8 Readers on Mendeley
by Discipline
 
 
 
13% Design
by Academic Status
 
38% Ph.D. Student
 
25% Doctoral Student
 
13% Student (Master)
by Country
 
13% Russia
 
13% Mexico

Sign up today - FREE

Mendeley saves you time finding and organizing research. Learn more

  • All your research in one place
  • Add and import papers easily
  • Access it anywhere, anytime

Start using Mendeley in seconds!

Already have an account? Sign in