摘要
以BaCO3和Fe2O3为原料,采用传统陶瓷工艺制备了六角磁铅石M型钡铁氧体陶瓷。采用XRD和SEM表征了样品的晶体结构和形貌特征。采用同轴法测试了样品的复介电常数(ε)和磁导率(μ),利用带状线法测试了其微波吸收性能。结果表明:经不同的烧结制度均制备出了物相单一、结晶良好的钡铁氧体样品;1 200℃保温8h制备的样品ε最大;1 250℃保温4 h制备的样品具有最高的μ,且在10.2 GHz的频率下,吸收损耗可达5.0 dB/mm。
M-type barium ferrite ceramics were fabricated by traditional ceramic technology using BaCO3 and Fe2O3 as raw materials. The crystal structure and morphology of the prepared samples were characterized by XRD and SEM. The complex permittivity （e） and permeability （μ） were measured by coaxial transmission/reflection method. The microwave absorption properties of the prepared samples were measured by stripline test method. The results show that single phase barium ferrite ceramics with good crystallization are obtained under different sintering schedules. The ceramic sintered at 1 200℃ for 8 h possesses the maximum e; the one sintered at 1 250℃ for 4 h possesses the maximum/1, and its microwave absorption loss can reach about 5.0 dB/mm at 10.2 GHz.
出处
《电子元件与材料》
CAS
CSCD
北大核心
2012年第3期4-7,共4页
Electronic Components And Materials
基金
四川省教育厅重点资助项目(No.08ZA009)
西南科技大学博士研究基金资助项目(No.08ZX0102)
西南科技大学博士研究基金资助项目(No.09ZX7104)
关键词
钡铁氧体
隔离器负载
微波吸收
电磁性能
barium ferrite
isolator load
microwave absorption
electro-magnetic properties
