| 液相包覆法引入B2O3对Ba2Ti9O20陶瓷介电性能的影响 |
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| 引用本文： | 李谦,金彪,黄金亮,李丽华.液相包覆法引入B2O3对Ba2Ti9O20陶瓷介电性能的影响[J].电子元件与材料,2011,30(11):5-8. |
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| 作者姓名： | 李谦 金彪 黄金亮 李丽华 |
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| 作者单位： | 河南科技大学材料科学与工程学院,河南洛阳,471003 |
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| 基金项目： | 河南省国际科技合作计划资助项目(No.0346620012); 河南省科技发展计划资助项目(No.092300410135) |
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| 摘 要： | 以BaCO3和TiO2粉末为原料,采用固相反应法合成Ba2Ti9O20主晶相,以H3BO3溶液为前驱液,通过液相包覆技术引入B2O3助烧剂以降低Ba2Ti9O20陶瓷的烧结温度.研究了液相包覆B2O3对Ba2Ti9O20陶瓷的烧结和介电性能的影响.结果表明,液相包覆B2O3后,Ba2Ti9O20陶瓷的烧结温度从1400...
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| 关 键 词： | 微波介质陶瓷 低温烧结 介电性能 液相烧结 液相包覆 |
Effects of adding B_2O_3 by liquid phase coating process on the dielectric properties of Ba_2Ti_9O_(20) ceramics |
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| LI Qian,JIN Biao,HUANG Jinliang,LI Lihua.Effects of adding B_2O_3 by liquid phase coating process on the dielectric properties of Ba_2Ti_9O_(20) ceramics[J].Electronic Components & Materials,2011,30(11):5-8. |
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| Authors: | LI Qian JIN Biao HUANG Jinliang LI Lihua |
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| Affiliation: | LI Qian,JIN Biao,HUANG Jinliang,LI Lihua (School of Material Science and Engineering,Henan University of Science and Technology,Luoyang 471003,Henan Province,China) |
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| Abstract: | Ba2Ti9O20 main phase was prepared using BaCO3 and TiO2 powders as raw materials by solid state reaction method.In order to reduce the sintering temperature of Ba2Ti9O20 ceramic,liquid phase coating process was used to dope B2O3 using H3BO3 solution as precusor.The effects of B2O3 doping on the sintering and dielectric properties of Ba2Ti9O20 ceramic were studied.The results show that liquid phase coating with B2O3 could decrease the sintering temperature of Ba2Ti9O20 ceramic from 1 400 ℃ to 1 250 ℃.When the concentration of H3BO3 sulotion is 1.0 mol/L,a high relative density of 98.3% and good dielectric properties of εr=42,tanδ= 0.002(1 MHz),τf = – 4×10–6/℃(1 MHz) are obtained for the Ba2Ti9O20 ceramic sintered at 1 250 ℃ for 4 h. |
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| Keywords: | microwave dielectric ceramics low temperature sintering dielectric property liquid phase sintering liquid phase coating |
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