Magnadur

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Magnadur is a sintered barium ferrite, specifically BaFe12O19 in an anisotropic form. [1] It is used for making permanent magnets. The material was invented by Mullard and was used initially particularly for focussing rings on cathode-ray tubes. Magnadur magnets retain their magnetism well, and are often used in education. [2] [3] Magnadur can also be used in DC motors. [4]

Physical characteristics

References

  1. ↑ Ellis, Hendrina; Trust, Nuffield-Chelsea Curriculum (1984). Book of Data. Nuffield-Chelsea Curriculumn Trust. p. 132. ISBN   0-582-35448-X.
  2. ↑ "Play with magnets". practicalphysics.org.
  3. ↑ Wenham, Martin W. (18 November 2004). Understanding Primary Science: Ideas, Concepts and Explanations. SAGE Publications Ltd. p.  234. ISBN   1412901634.
  4. ↑ Magnadur Magnets for Direct Current Motors. Mullard Ltd. 31 December 1970. ISBN   0901232106.

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