Addition of a minor amount of Co2Y effects on the microstructure, magnetic properties and DC-bias superposition characteristics of low-fire NiCuZn ferrites

Hsing I. Hsiang, Chi Shiung Hsi, Ruei Lin Lin, Chung Yen Chiang

研究成果: Article同行評審

10 引文 斯高帕斯(Scopus)

摘要

The addition of a minor amount of Co2Y ferrites effects on the microstructure, magnetic properties and DC-bias superposition characteristics of NiCuZn ferrites were investigated in this study. It was observed that Co2Y can effectively act as the inert second phase to reduce grain mobility using the Zener pinning effect during sintering, and hence impede grain growth. The initial permeability of NiCuZn ferrites decreased, but the onset frequency for the increase in imaginary permeability as well as the resonance frequency both increased with increasing Co2Y addition due to the grain size effects. The figure of merit for NiCuZn ferrites for high frequency applications, (μi - 1) fr, and DC-bias-superposition characteristics can be effectively promoted by increasing Co2Y addition. A suitable compromise between the initial permeability and DC superposition characteristic can also be obtained by adding a proper amount of Co2Y to adjust the grain size.

原文English
頁(從 - 到)295-300
頁數6
期刊Materials Chemistry and Physics
151
DOIs
出版狀態Published - 2015 二月 1

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics

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