Cart (Loading....) | Create Account
Close category search window
 

Acicular γ-Fe2O3 particles surface-coated with barium ferrite

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)
Deng, M.C. ; Dept. of Mater. Sci. & Eng., Tsing Hua Univ., Hsinchu, Taiwan ; Hsu, S.L. ; Chin, T.S.

Acicular γ-Fe2O3 particles surface-coated with barium ferrite (BF) have been prepared by reacting acicular α-FeOOH and surface-absorbed Ba++ at 810 to 890°C followed by reduction-oxidation. The BF-coated γ-Fe2O3 has a diameter of 100 to 200 nm and aspect ratio of 3 to 8, a coercivity of 330 to 3600 Oe, and a saturation and residual magnetization of 47 to 70 and 23 to 34 emu/g, respectively, by controlling the Ba++ concentration and heat treatment temperatures. They have an extremely low temperature coefficient of coercivity of -0.07 to -0.1%/°C. These particles are potentially useful for high-density recording purposes

Published in:

Magnetics, IEEE Transactions on  (Volume:28 ,  Issue: 5 )

Date of Publication:

Sep 1992

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.