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应用科学学报 ›› 1999, Vol. 17 ›› Issue (4): 400-404.

• 论文 • 上一篇    下一篇

离子取代对Ba(Zn1-xCox)2Fe16O27铁氧体μi-T曲线的影响

邓龙江, 谢建良, 陈选臻   

  1. 电子科技大学
  • 收稿日期:1998-05-18 修回日期:1998-09-22 出版日期:1999-12-31 发布日期:1999-12-31
  • 基金资助:
    国防科工委预研计划资助项目

The Influence of Ion Substitution of Ba(Zn1-x Cox)2Fe16O27 Hexaferrite on the μi-T Curve

DENG LONGJIANG, XIE JIANLIANG, CHEN XUANZHEN   

  1. Institute of Information Materials Engineering, UESTC of China, Chengdu 610054
  • Received:1998-05-18 Revised:1998-09-22 Online:1999-12-31 Published:1999-12-31

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摘要： 采用氧化物工艺制备Ba(Zn1-xCox)2Fe16O27六角铁氧体,通过不同含量Co2+、Cu2+对Zn2+的取代,发现平面型Ba(Zn1-xCox)2Fe16O27的_i-T曲线出现双峰(I、Ⅱ).随着Co2+、Cu2+含量的增加,第Ⅱ峰分别移向高温和低温.并通过Ba(Zn1-xCox)2Fe16O27的磁晶各向异性常数Ku1、Ku2、Ku3随温度T的变化对实验结果进行了分析,所得结果对改善材料温度稳定性有实用价值.

关键词: 起始磁导率, 磁晶各向异性, 温度稳定性, 六角铁氧体

Abstract: Two peaks (I、Ⅱ) of μi-T curve have been found in the planar anisotropic Ba(Zn1-x Cox)2Fe16O27 hexaferrites prepared by ceramic process in this paper, and the second peak Ⅱ moves to higher temperature as Co2+ substitution increase, but as Cu2+ substitution increase it moves to lower temperature. The experiment results correspond with the influence of temperature on the magnetic crystalline anisotropic constant Ku1、Ku2、Ku3, and are a great help to improving the temperature stability of the materials.

Key words: hexaferrite, magnetic crystalline anisotropy, initiative permeability, temperature stability