| 掺杂Co_2O_3对ZnTiO_3陶瓷介电性能的影响 |
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| 引用本文： | 李文虎,艾桃桃,刘艳,唐玲.掺杂Co_2O_3对ZnTiO_3陶瓷介电性能的影响[J].功能材料与器件学报,2012,18(2):91-96. |
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| 作者姓名： | 李文虎 艾桃桃 刘艳 唐玲 |
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| 作者单位： | 陕西理工学院材料科学与工程学院,陕西汉中,723003 |
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| 基金项目： | 陕西省教育厅专项科研计划项目 |
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| 摘 要： | 研究了掺杂Co2O3对ZnTiO3陶瓷的微观结构与介电性能的影响。结果表明,掺杂的Co2O3在高温下分解生成Co2+进入ZnTiO3晶格形成(CoxZn1-x)TiO3固溶体,有效阻止了其分解为立方尖晶石相和金红石相。当Co2O3掺杂量为x=0.1,烧结温度1050℃时,陶瓷具有优良的微波介电性能和体积密度:ε=29.8,Q=4660(f=10GHz),τf=-60×10-6/℃,ρ=5.11g/mm3,并形成稳定、完全致密化的介电陶瓷组织结构。
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| 关 键 词： | ZnTiO3陶瓷 掺杂 介电性能 |
Effects of Co2O3 -doping on dielectric properties of ZnTiO3 ceramics |
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| LI Wen-hu
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AI Tao-tao
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LIU Yan
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TANG Ling.Effects of Co2O3 -doping on dielectric properties of ZnTiO3 ceramics[J].Journal of Functional Materials and Devices,2012,18(2):91-96. |
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| Authors: | LI Wen-hu AI Tao-tao LIU Yan TANG Ling |
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| Affiliation: | (School of Material Science and Engineering,Shaanxi University of Technology,Hanzhong 723003,China) |
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| Abstract: | Effect of Co2O3–doping on microstructure and dielectric properties of ZnTiO3 were studied.The results show that Co2+ is produced from high temperature decomposing of Co2O3.Zn2+ is replaced partially by Co2+ in ZnTiO3 to form(CoxZn1-x)TiO3 which prevented ZnTiO3 dissolved into spinel and rutile.When the Co2O3 doped amount is 0.1 and sintering temperature is 1050℃,ZnTiO3 ceramic system shows stable dense structure and excellent microwave dielectric properties and volume density as follows: ε=29.8,Q=4660(f=10GHz),τf=-60×10-6/℃,ρ=5.11g/mm3. |
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| Keywords: | ZnTiO3 ceramic doping dielectric properties |
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