Magnetic and mechanical properties of ZrO/sub 2/ doped NiZn ferrites

The magnetic and mechanical properties of zirconia-added NiZn ferrite were studied. It was found that the addition of small amounts of ZrO/sub 2/ improves their magnetic properties to a great extent. Magnetic losses at 10 MHz decreased by a factor of two with no significant change in permeability wh...

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Veröffentlicht in:IEEE transactions on magnetics 1988-03, Vol.24 (2), p.1838-1840
Hauptverfasser: Besenicar, S., Kosmac, T., Drofenik, M., Krasevec, V.
Format: Artikel
Sprache:eng
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Zusammenfassung:The magnetic and mechanical properties of zirconia-added NiZn ferrite were studied. It was found that the addition of small amounts of ZrO/sub 2/ improves their magnetic properties to a great extent. Magnetic losses at 10 MHz decreased by a factor of two with no significant change in permeability whereas the flexural strength of the material can be improved by the same factor of two while adding 0.5 wt.% of dopant. It is hypothesized that the microstructural changes and, consequently, the change in the electrical conductivity influence the magnetic losses. The interface changes allow the explanation of mechanical properties improvements.< >
ISSN:0018-9464
1941-0069
DOI:10.1109/20.11619