Low-temperature sintering method for NiCuZn ferrite and effect of Mn addition on electromagnetic properties

被引：5

作者：

Ju Dong-ying ^{[1
]}

Bian Pei

机构：

[1] Anshan Univ Sci & Technol, Res Ctr High Technol, Anshan 114044, Peoples R China

[2] Saitama Inst Technol, Adv Sci Res Ctr, Okabe, Saitama 3690293, Japan

来源：

TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2006年 / 16卷

关键词：

ferrite; NiCuZn; boric acid; electromagnetic properties; Mn addition;

D O I：

10.1016/S1003-6326(06)60144-1

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Low temperature sintering NiCuZn ferrite was employed at most cases due to its co-firability with Ag (below 960 degrees C). The NiCuZn ferrite sintered body with high-strength and high-frequency magnetic properties was fabricated. Firstly, NiCuZn ferrite powder was synthesized under CO2 atmosphere at 500 degrees C from the mixed doxalate synthesized by liquid phase precipitation method. Then a small amount of boric acid (H3BO3) was added to the powder, and the NiCuZn ferrite powder compact was prepared with Newton press and CIP methods. Finally, NiCuZn ferrite sintered body was fabricated by sintering at 900 degrees C under CO2 atmosphere. The minimum sintering temperature (800 degrees C) was determined by the study of high temperature shrinkage. By this method, NiCuZn ferrite sintered body with 0.5% (mass fraction) boric acid was obtained, which has the bending strength of 340 M-Pa. The effect of various Mn addition on electromagnetic properties were studied.

引用

页码：S67 / S70

页数：4

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