BaFe12O19/SiO2微晶玻璃陶瓷的柠檬酸盐Sol-Gel合成及其微波性能的研究 |
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引用本文: | 张海军,姚熹,张良莹.BaFe12O19/SiO2微晶玻璃陶瓷的柠檬酸盐Sol-Gel合成及其微波性能的研究[J].无机材料学报,2001,16(6):1069-1076. |
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作者姓名: | 张海军 姚熹 张良莹 |
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作者单位: | 同济大学功能材料研究所,上海200092 |
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基金项目: | 国家自然科学基金重大项目资助(59995320);上海市高校科技发展基金项目资助(99QE09) |
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摘 要: | 采用柠檬酸sol-gel工艺合成了BaFe12O19/SiO2微晶玻璃陶瓷,并对其介电常数及其磁导率在100MHz-6GHz下的变化规律进行了研究。结果表明,BaFe12O19/SiO2微晶玻璃陶瓷的合成与体系中Fe/Ba,烧结温度密切相关;其介电常数、磁导率基本都随测试频率的增加而下降,介电损耗值最大达到0.40,磁损耗值较小。
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关 键 词: | BaFe12O19/SiO2 微晶玻璃陶瓷 sol-gel 微波性能 柠檬酸盐 二氧化硅 钡铁氧化物 |
文章编号: | 1000-324(2001)06-1069-08 |
收稿时间: | 2000-12-8 |
修稿时间: | 2000年12月8日 |
Studies on Preparation and Microwave Properties of BaFe12O19/SiO2 Microcrystallite Glass Ceramics by Citrate Sol-Gel Process |
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Affiliation: | FunctionalMaterialResearchLaboratory;TongjiUniversity;Shanghai200092;China |
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Abstract: | BaFe12O19/SiO2 microcrystallite glass ceramics were prepared by citrate so1-gel pro- cess; The complex dielectric constant and complex permeability dispersion were investigated in 100MHz-6GHz range. The results obtained show those conditions such as Ba/Fe, sintering tem- perature have a close effect on the synthesis of BaFe12O19/SiO2 microcrystallite glass ceramics; the complex dielectric constant and complex permeability will decrease as the measuring frequency increasing, and maximum dielectric loss is 0.40, but magnetic loss nearoy zero. |
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Keywords: | BaFe12O19/SiO2 microcrystallite glass ceramics sol-gel microwave properties |
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