Highly resistive grain boundaries in doped MnZn ferrites for high frequency power supplies

被引：72

作者：

Drofenik, M ^{[1
]}

Znidarsic, A ^{[1
]}

Zajc, I ^{[1
]}

机构：

[1] ISKRA FERITI,LJUBLJANA,SLOVENIA

来源：

JOURNAL OF APPLIED PHYSICS | 1997年 / 82卷 / 01期

关键词：

D O I：

10.1063/1.365817

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The power loss of MnZn ferrites and its relation to average grain size and grain boundary properties was investigated. The power loss was found to be dependent; on the average grain size and on the highly electrically resistive grain boundaries which are formed by introduction of aliovalent ions in the outer grain region of a MnZn ferrite. Analysis of ac impedance data, assisted by Anger electron spectroscopy, elucidated the chemical and electrically diversity of doped and undoped samples and its influence on eddy current loss. (C) 1997 American Institute of Physics.

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页码：333 / 340

页数：8

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