高磁导率镍锌铁氧体的制备

Preparation of high-permeability NiCuZn ferrite.

作者信息

Hu Jun, Yan Mi

机构信息

State Key Lab of Silicon Materials, Zhejiang University, Hangzhou 310027, China.

出版信息

J Zhejiang Univ Sci B. 2005 Jun;6(6):580-3. doi: 10.1631/jzus.2005.B0580.

DOI:10.1631/jzus.2005.B0580

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC1389894/

Abstract

Appropriate addition of CuO/V2O5 and the reduction of the granularity of the raw materials particle decrease the sintering temperature of NiZn ferrite from 1200 degrees C to 930 degrees C. Furthermore, the magnetic properties of the NiZn ferrite prepared at low temperature of 930 degrees C is superior to that of the NiZn ferrite prepared by sintering at high temperature of 1200 degrees C because the microstructure of the NiZn ferrite sintered at 930 degrees C is more uniform and compact than that of the NiZn ferrite sintered at 1200 degrees C. The high permeability of 1700 and relative loss coefficient tandelta/mu(i) of 9.0x10(-6) at 100 kHz was achieved in the (Ni0.17Zn0.63Cu0.20)Fe1.915O4 ferrite.

摘要

适当添加CuO/V2O5并降低原料颗粒的粒度，可使镍锌铁氧体的烧结温度从1200℃降至930℃。此外，在930℃低温下制备的镍锌铁氧体的磁性能优于在1200℃高温下烧结制备的镍锌铁氧体，因为930℃烧结的镍锌铁氧体的微观结构比1200℃烧结的镍锌铁氧体更均匀、更致密。在（Ni0.17Zn0.63Cu0.20）Fe1.915O4铁氧体中，在100kHz时实现了1700的高磁导率和9.0×10^(-6)的相对损耗系数tandelta/mu(i)。

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