By Topic

Methods of Preparation and Crystal Chemistry of Ferrites

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

1 Author(s)
Fresh, Donald L. ; Bureau of Mines, College Pk., Md.

Conventional ceramic methods for pure oxide materials can generally be applied to the processing of ferrites. Specialized techniques such as coprecipitation and hydrostatic pressing are sometimes employed. A process involving nonaqueous milling and forming additives provides dense shapes. The general formula for ferrites is MO·Fe2O3 (M is a divalent metallic cation). X-ray diffraction may be used to conduct unit cell and phase relation studies. Metallurgical micrographic techniques are useful in investigating grain and pore structure. A study of the solid state reaction kinetics of an equimolar mixture of MgO and Fe2O3 at elevated temperatures showed that the reaction was expressed by the diffusion equation (1- 3¿1-.01x)2 = K where x is the percentage of reaction at time t, and Kis a constant.

Published in:

Proceedings of the IRE  (Volume:44 ,  Issue: 10 )