| (La0.44Sr0.33)TiO3对MgTiO3系高频高Q MLCC瓷料性能的影响 |
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| 引用本文： | 张先云,邬若军,姜胜林,张光祖.(La0.44Sr0.33)TiO3对MgTiO3系高频高Q MLCC瓷料性能的影响[J].压电与声光,2012,34(4):589-592. |
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| 作者姓名： | 张先云 邬若军 姜胜林 张光祖 |
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| 作者单位： | 1. 华中科技大学 电子科学与技术系,湖北 武汉,430074
2. 深圳市安培盛科技有限公司,广东 深圳,518111 |
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| 基金项目： | 武汉市科技计划基金资助项目，华中科技大学自主创新研究基金，教育部国防重点实验室开放基金 |
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| 摘 要： | 采用传统固相反应法制备了(1-x)(Mg0.95Zn0.05)TiO3-x(La0.44Sr0.33)TiO3(MZLST)介质陶瓷。系统研究了(La0.44Sr0.33)TiO3掺杂量对MZLST陶瓷烧结特性、相构成、微观结构和微波介电性能的影响。结果表明,掺杂少量的(La0.44Sr0.33)TiO3后,MZLST陶瓷的主晶相为(Mg0.95Zn0.05)TiO3和(La0.44Sr0.33)TiO3,随着烧结温度的升高,第二相(Mg0.95Zn0.05)Ti2O5的含量增加。当x=0.10时,MZLST陶瓷在1 285℃烧结2h获得最佳的介电常数εr=22.17,品质因数Q.f=48 471GHz(6.72GHz),谐振频率温度系数τf=-7.99×10-6/℃。
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| 关 键 词： | 微波陶瓷 多层陶瓷电容器(MLCC) (La0.44Sr0.33)TiO3掺杂量 微波介电性能 |
Effect of (La0.44Sr0.33)TiO3 on the Properties of MgTiO3 System MLCC Ceramic Material With High Frequency and High Q value |
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| ZHANG Xianyun,WU Ruojun,JIANG Shenglin and ZHANG Guangzu.Effect of (La0.44Sr0.33)TiO3 on the Properties of MgTiO3 System MLCC Ceramic Material With High Frequency and High Q value[J].Piezoelectrics & Acoustooptics,2012,34(4):589-592. |
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| Authors: | ZHANG Xianyun WU Ruojun JIANG Shenglin and ZHANG Guangzu |
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| Affiliation: | 1(1.Dept.of Electronic Science and Technology,Huazhong University of Science and Technology,Wuhan 430074,China; 2.Shenzhen Ampron Technology Co.Led,Shenzhen 518111,China) |
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| Abstract: | The(1-x)(Mg0.95Zn0.05)TiO3-x(La0.44Sr0.33)TiO3(MZLST) system microwave ceramics were prepared by conventional solid state reaction process.The effects of(La0.44Sr0.33)TiO3 doped amount on the sintering characteristics,phase composition,microstructure and microwave dielectric properties of MZLST ceramics were systemically investigated.The results showed that,with a small mount of(La0.44Sr0.33)TiO3 addition,the prepared MZLST ceramics had the mixed phases of(Mg0.95Zn0.05)TiO3 and(La0.44Sr0.33)TiO3 as the main phases,and the intensity of a minor phase(Mg0.95Zn0.05)Ti2O5 increased with the sintering temperature increase.For x=0.10,the MZLST ceramics exhibited optimalve microwave dielectric properties of εr=22.17,Q·f=48 471 GHz(6.72 GHz)and τf=-7.99×10-6/℃ sintered at 1 285 ℃ for 2 h. |
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| Keywords: | microwave dielectric ceramic MLCC (La0 44Sr0 33)TiO3 doped amount microwave dielectric property |
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