Effects of glass addition on magnetic properties of 3Ba0.5Sr0.5O·2CoO·12Fe2O3 for multilayer chip inductors

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Abstract

The effect of glass addition on the magnetic properties of 3Ba0.5Sr0.5O·2CoO·12Fe2O3 (Co2Z) ferrites was investigated. The densification of Co2Z ferrites was enhanced by the addition of glass at low sintering temperature (<900°C) due to the liquid-phase sintering. The initial permeability and Q value of Co2Z ferrite sintered at low temperature were improved by the addition of glass. Multilayer chip inductors made of Co2Z ferrite containing glass exhibit excellent magnetic properties. The device offered low impedance at 100 MHz and high impedance at frequencies between 500 MHz and 1000 MHz. Therefore, it could be used as an electromagnetic interference countermeasure component effective in suppressing GHz band noise.

Original languageEnglish
Pages (from-to)5137-5141
Number of pages5
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume41
Issue number8
Publication statusPublished - 2002 Aug

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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