MICROSTRUCTURE AND PHYSICAL-PROPERTIES OF MN-ZN FERRITES FOR HIGH-FREQUENCY POWER-SUPPLIES

被引：45

作者：

OTSUKI, E

YAMADA, S

OTSUKA, T

SHOJI, K

SATO, T

机构：

[1] Sendai Research Laboratories, Tokin Corporation, Sendai

来源：

JOURNAL OF APPLIED PHYSICS | 1991年 / 69卷 / 08期

关键词：

D O I：

10.1063/1.347822

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The power loss of Mn-Zn ferrites and its dependency on the microstructural factors have been investigated. The power loss was found to be lowered due to the formation of a high-electrical-resistive boundary layers, which is accomplished by an addition of specific refractory oxides, which are concentrated on the grain boundary and form a boundary layer with CaO. The new material, having a low power loss at high frequency (approximately 1 MHz), has been developed with the HfO2 addition.

引用

页码：5942 / 5944

页数：3