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

Anisotropic Nd2Fe14B-based magnet powder with high remanence produced by modified HDDR process

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

8 Author(s)
Morimoto, K. ; Central Res. Inst., Mitsubishi Mater. Corp., Omiya, Japan ; Nakayama, R. ; Mori, K. ; Igarashi, K.
more authors

The hydrogenation-decomposition-desorption-recombination (HDDR) process is a unique method to produce anisotropic Nd2Fe14B-based magnet powder for bonded magnet application. In this study, we studied the effect of appending the intermediate Ar (IA) treatment, i.e., hydrogenated materials are annealed under an Ar atmosphere before the evacuation treatment in the HDDR process, on the magnetic properties of magnet powder. It was found that the IA treatment is very effective to enhance magnetic anisotropy of the powder. The optimum magnetic properties of the anisotropic bonded magnet made from the IA treatment processed Nd12.6Febal. Co17.4B6.5Zr0.1Ga0.3 powder are as follows: Br=1.06 T, HcJ=992 kA/m, and (BH)max=193 kJ/m3. It was observed that the IA treatment induces rapid growth of a α-(Fe,Co) grains in the decomposed mixture of the alloy. This microstructural change of the alloy is considered to be strongly related to the preferred crystallographic orientation of the final magnet powder

Published in:

Magnetics, IEEE Transactions on  (Volume:35 ,  Issue: 5 )

Date of Publication:

Sep 1999

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.