EFFECT OF ER2O3 ADDITION ON MICROSTRUCTURE AND PHYSICAL-PROPERTIES OF MN-ZN FERRITES FOR HIGH-POWER USE

被引：5

作者：

LIU, CS ^{[1
]}

WU, JM ^{[1
]}

CHEN, CJ ^{[1
]}

TUNG, MJ ^{[1
]}

机构：

[1] IND TECHNOL RES INST,MAT RES LABS,HSINCHU 31015,TAIWAN

来源：

JOURNAL OF APPLIED PHYSICS | 1994年 / 75卷 / 10期

关键词：

D O I：

10.1063/1.355477

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The present authors found that Mn-Zn ferrites containing Er2O3 had improved values of sigma(s) (specific magnetization) and amplitude permeability. Samples with different addition amount of Er2O3 were sintered at 1180-degrees-C. The results show that Er2O3 addition from 0.02 to 0.1 wt % causes the amplitude permeability to increase from 1070 to 2180. The magnetization can be increased from 91.6 to 92.8 emu/g within the range 0.02-0.1 wt %. Furthermore, the effect of Er2O3 addition was investigated in detail by power-loss analysis and scanning electron microscopy examination of microstructure. We found that samples with Er2O3 less than 0.04 wt % exhibit power loss similar to the sample without Er2O3 addition and with SiO2-CaO contents. Thus we conclude that the amplitude permeability and specific magnetization of Mn-Zn ferrites for high-frequency and high-power use were improved by a small Er2O3 addition (<0.04 wt %).

引用

页码：6112 / 6114

页数：3

共 5 条

[1]

MIZUSHIMA T, 1992, 6TH P INT C FERR TOK, P1221

[2]

MOCHIZUKI T, 1985, MN ZN FERRITE 400 60, P487

[3] MICROSTRUCTURE AND PHYSICAL-PROPERTIES OF MN-ZN FERRITES FOR HIGH-FREQUENCY POWER-SUPPLIES [J].