| Bi_2O_3和Bi(NO_3)_3掺杂对锂锌铁氧体微观结构和微波吸收性能的影响 |
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| 引用本文： | 曹晓非,孙康宁,冷亮.Bi_2O_3和Bi(NO_3)_3掺杂对锂锌铁氧体微观结构和微波吸收性能的影响[J].功能材料,2009,40(3). |
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| 作者姓名： | 曹晓非 孙康宁 冷亮 |
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| 作者单位： | 山东大学,材料液态结构及其遗传性教育部重点实验室,山东,济南,250061;工程陶瓷山东省重点实验室,山东,济南,250061
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| 基金项目： | 国家自然科学基金，济南市重点科技专项资助项目 |
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| 摘 要： | 采用溶胶凝胶法与后期煅烧相结合,制备了纯锂锌铁氧体及掺杂氧化铋和硝酸铋的铁氧体.扫描电镜和X射线衍射研究发现:氧化铋和硝酸铋的加入可对锂、锌的化舍物的过量汽化产生有效的抑制作用,而这有利于减小所得铁氧体材料的实际组分偏差.但铋的化合物的加入也会对锂锌铁氧体的低频吸波性能产生略微的减弱效果.
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| 关 键 词： | 锂锌铁氧体 晶相 微波吸收 |
Influence of Bi_2O_3 and Bi(NO_3)_3 dopant on microstructure and microwave Absorption of lithium zinc ferrites |
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| CAO Xiao-fei,SUN Kang-ning,LENG Liang.Influence of Bi_2O_3 and Bi(NO_3)_3 dopant on microstructure and microwave Absorption of lithium zinc ferrites[J].Journal of Functional Materials,2009,40(3). |
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| Authors: | CAO Xiao-fei SUN Kang-ning LENG Liang |
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| Affiliation: | 1.Key Laboratory for liquid Structure and Heredity of Materials;Ministry of Education;Shandong University;Ji'nan 250061;China;2.Key Laboratory of Engineering Ceramics of Shandong Province;China |
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| Abstract: | Pure lithium zinc ferrite and ferrites doped with Bi2O3 and Bi(NO3)3 were synthesized by a combination of sol-gel with subsequent calcination.The morphologies and microstructures of the ferrites were investigated by SEM and XRD.The results exhibit the addition of Bi2O3 and Bi(NO3)3 can inhibit excessive vapourization of the compounds of Lithium and Zinc,and this makes for decreasing the deviation between the actual composition of ferrites and the desired results.However,the addition of the compounds of bism... |
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| Keywords: | lithium zinc ferrite crystalline phase microwave Absorption |
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