• C. J. Dredge
Part of the Macmillan Engineering Evaluations book series (MECS)


Over the last two or three decades ferrimagnetic oxides, or ferrites, have become practical magnetic materials and have risen to a place of importance in many areas of electronic engineering. The combination of insulating and magnetic properties make ferrites particularly useful for certain applications where metallic magnetic materials exhibit high loss. The range of compositions and properties of nonmetallic magnetic materials is very wide and the practical requirement that the material must have significant magnetic properties at the operating temperature, focuses the attention of the engineer on the iron containing oxides, or ferrites, with Curie temperatures above room temperature. In general, this leaves for consideration three crystallographic classes of ferrites namely, spinels, garnets and hexagonal ferrites, and a relatively small range of elements, primarily the first transition elements, which show magnetic properties in certain sites and valencies.


Saturation Magnetisation Yttrium Iron Garnet Nickel Ferrite Barium Ferrite Ferrite Material 
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  1. B Lax and K J Button: Microwave Ferrites and Ferrimagnetics, McGraw-Hill Book Co Inc 1962.Google Scholar
  2. J Smit and H P J Wijn: Ferrites, Philips Technical Library 1959.Google Scholar
  3. E C Snelling: Soft Ferrites, Iliffe Books Ltd, 1969.Google Scholar

Copyright information

© Palgrave Macmillan, a division of Macmillan Publishers Limited 1971

Authors and Affiliations

  • C. J. Dredge
    • 1
  1. 1.The M-0 Valve Company LimitedUK

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