By Topic

Deposition of Sn hydrosols on Co-γ-Fe2O3 magnetic particles

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
$33 $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

2 Author(s)
W. -J. Chen ; Mater. Res. Lab., Ind. Technol. Res. Inst., Hsinchu, Taiwan ; M. R. Tarng

An improved colloidal solution of tin hydrous oxide has been developed. This solution was found to readily deposit onto the low-wettability surface of Co-γ-Fe2O3 particles to form a uniform layer of irremovable coating. Based upon the chemical characterization of the tin-sol-treated surface, the effectiveness of such treatments on magnetic oxide particles is described in terms of dispersion stability, dispersibility, rheological behavior, and other magnetic tape performance. A significant improvement in wetting, dispersion and flow behavior was observed for the 1% Sn coated magnetic particles upon dispersion in a polyurethane-based formulation. Additional magnetic tape data also revealed that surface treatments on magnetic particles facilitate the particle orientation by exposure to a 2000-Oe external magnetic field before dying, as evidenced by the high values of hysteresis squareness up to 0.8, indicating good dispersion of magnetic particles

Published in:

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