By Topic

Interaction of barium ferrite particles with phosphate ester dispersants

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Hudson, G.F. ; IBM Corp., Tucson, AZ, USA ; Mathur, M.C.A. ; Raghavan, S.

Using the technique of flow microcalorimetry, both the heat and extent of adsorption of commercially available phosphate ester dispersants on Co and Ti doped and undoped barium ferrite particles were measured. To better understand specific chemical interactions between the dispersants and particles, the authors performed XPS analysis before and after adsorption. Experimental results show distinct differences in the reactivity of doped and undoped particles toward the dispersants. The heats of adsorption of phosphate ester dispersants onto doped ferrite particles were as large as -60 kcal/mole, indicating strong chemical interactions in this system. XPS measurements also show evidence for strong chemical interactions between barium ferrite particles and organo-phosphate dispersants

Published in:

Magnetics, IEEE Transactions on  (Volume:27 ,  Issue: 6 )