镧六方铁氧体Ba1-xLaxFe12O19的电磁 性能与吸波特性

镧六方铁氧体Ba_1-xLa_xFe₁₂O₁₉的电磁性能与吸波特性

袁兰英¹, 甘树才¹, 孟健²

1. 吉林大学化学学院，长春 130026; 2. 中国科学院长春应用化学研究所稀土化学与物理开放实验室，长春 130022

收稿日期:2002-07-05 修回日期:1900-01-01 出版日期:2003-04-26 发布日期:2003-04-26
通讯作者: 甘树才

Electromagnetic Properties and Microwave Absorbing Property of Lanthanum Hexagonal Ferrite Ba_1-xLa_xFe₁₂O₁₉

YUAN Lan-ying¹, GAN Shu-cai¹, MENG Jian²

1. College of Chemistry, Jilin University, Changchun 130026, China; 2. Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied C hemistry, Chinese Academy of Sciences, Changchun 130022, China

Received:2002-07-05 Revised:1900-01-01 Online:2003-04-26 Published:2003-04-26
Contact: GAN Shu-cai

摘要/Abstract

摘要： 研究了掺稀土六方铁氧体Ba_{1-xLa_xFe₁₂O_{1 9}的合成条件，测试了其结构、形貌、电磁性能与吸波特性. 结果表明, 稀土离子 La³⁺的加入，降低了钡铁氧体的磁化强度、矫顽力和顽磁性，其磁特性接近软磁铁氧体材料；在1.65~2.95 GHz的频率范围内，具有良好的吸波性能.}

关键词: 镧六方铁氧体, 电磁性能, 损耗, 吸波特性

Abstract: The particles of lanthanum hexagogal ferrite Ba_1-xLa_xFe₁₂O₁₉ were synthesized by the sol-gel method. Their crystal structure, particle morphology, electromagnetic properties and microwave absorbing property were studied. The magnetization, the retentivity and the coercivity of the synthesized barium f errite decrease greatly due to the addition of La³⁺, and t hey are up to the corresponding ones of soft magnetic materials. It was found t hat the microwave absorbency of barium ferrite in the range of 1.65～2.95　GHz was good.

Key words: lanthanum hexagonal ferrite, electromagnetic properties, loss, micro wave absorbing property

中图分类号:

O611.3

袁兰英, 甘树才, 孟健. 镧六方铁氧体Ba_1-xLa_xFe₁₂O₁₉的电磁性能与吸波特性[J]. J4, 2003, 41(02): 231-233.

YUAN Lan-ying, GAN Shu-cai, MENG Jian. Electromagnetic Properties and Microwave Absorbing Property of Lanthanum Hexagonal Ferrite Ba_1-xLa_xFe₁₂O_{19[J]. J4, 2003, 41(02): 231-233.}

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镧六方铁氧体Ba_1-xLa_xFe₁₂O₁₉的电磁性能与吸波特性

Electromagnetic Properties and Microwave Absorbing Property of Lanthanum Hexagonal Ferrite Ba_1-xLa_xFe₁₂O₁₉

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