| 超细(Ba,Sr)TiO_3基陶瓷电容器的掺杂改性研究 |
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| 引用本文： | 管浩,黄新友,黄国军.超细(Ba,Sr)TiO_3基陶瓷电容器的掺杂改性研究[J].兵器材料科学与工程,2007,30(2):48-51. |
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| 作者姓名： | 管浩 黄新友 黄国军 |
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| 作者单位： | 江苏大学,材料科学与工程学院,江苏,镇江,212013 |
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| 摘 要： | 为了得到性能优良的超细电容器陶瓷,采用改进的溶胶￣凝胶法制备高纯、超细Ba0.7Sr0.3TiO3粉体,所得粉体平均粒径为50～100nm。同时掺杂MgO,ZnO,MnO,Bi2O3,Y2O3等物质,利用(Ba,Sr)TiO3混合粉体研究超细晶(Ba,Sr)TiO3(BST)功能陶瓷的制备,并分析微量元素的掺杂和烧结温度对BST陶瓷介电性能和表面显微结构的影响,得到了介电常数为2203,介质损耗为0.004的BST陶瓷。
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| 关 键 词： | Ba0.7Sr0.3TiO3 溶胶-凝胶法 超细粉体 介电性能 电容器 |
| 文章编号： | 1004-244X（2007）02-0048-04 |
| 修稿时间： | 2006-06-05 |
Study on doping modification of ultra-fine (Ba,Sr)TiO3 ceramic for capacitors |
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| GUAN Hao,HUANG Xin-you,HUANG Guo-jun.Study on doping modification of ultra-fine (Ba,Sr)TiO3 ceramic for capacitors[J].Ordnance Material Science and Engineering,2007,30(2):48-51. |
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| Authors: | GUAN Hao HUANG Xin-you HUANG Guo-jun |
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| Affiliation: | School of Materials Science and Engineering,Jiangsu University,Zhenjiang 212013, China |
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| Abstract: | In order to obtain ultra-fine ceramic for capacitors with good properties,the highly pure ultra-fine (Ba,Sr)TiO3 powder was prepared by the advanced sol-gel method and the average size of powder was between 50 nm and 100 nm. The preparation technology of ultra-fine (Ba,Sr)TiO3(BST) functional ceramics using (Ba,Sr)TiO3 powders with addition of the dopants MgO,ZnO,MnO,Bi2O3,Y2O3 as raw material was studied, and effect of the dopants and sintering temperature on dielectric properties and microstructure of BST ceramics was analyzed. Dielectric constant and dielectric loss could reach 2 203 and 0.004 respectively . |
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| Keywords: | Ba0 7Sr0 3TiO3 |
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