| 弛豫铁电陶瓷Ba(Mg,Nb)O_3的制备及性能研究 |
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| 引用本文： | 单连伟,吴泽,董立敏,韩志东,张显友.弛豫铁电陶瓷Ba(Mg,Nb)O_3的制备及性能研究[J].信息记录材料,2009,10(4):18-21. |
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| 作者姓名： | 单连伟 吴泽 董立敏 韩志东 张显友 |
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| 作者单位： | 哈尔滨理工大学,材料学院,哈尔滨,150040 |
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| 摘 要： | 采用传统陶瓷烧结方法,在空气气氛下烧结制得Ba(Mg,Nb)O3(BMN)陶瓷,并分析了烧结温度对体系相组成及相结构的影响。X射线衍射(XRD)研究表明,随着烧结时间的增加,体系中钙钛矿相也相应增加。红外(FTIR)研究研究表明结构无序的BMN钙钛矿相中部分的区域出现了结构有序现象。通过X射线光电子能谱(XPS)可以发现,随着烧结温度的增加,体系中Nb2O5进入Ba(Mg1/3,Nb2/3)O3晶格。微波介电性能表明,随着烧结温度的增加,Ba(Mg,Nb)O3的rε和Qf值有逐渐增加的趋势。
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| 关 键 词： | Ba(Mg Nb)O3 XPS 微波性能 |
Preparation and Properties Studies of Barium Magnesium Niobate |
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| SHAN Lian-wei,WU Ze,DONG Li-min,HAN Zhi-dong,ZHANG Xian-you.Preparation and Properties Studies of Barium Magnesium Niobate[J].Information Recording Materials,2009,10(4):18-21. |
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| Authors: | SHAN Lian-wei WU Ze DONG Li-min HAN Zhi-dong ZHANG Xian-you |
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| Affiliation: | Department of Materials Science and Engineering;Harbin University of Science and Technology;Harbin 150040;China |
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| Abstract: | Relaxor-type ferroelectric perovskites attract a lot of attentions due to their excellent dielectric and microwave properties.Ba(Mg,Nb)O3(BMN) ceramics have been synthesized from oxides by sintering in airs using a conventional mixed oxide process.From the study of XRD patterns,it is found that the amount of the perovskite phase increases with the increasing amount of La2O3.Furthermore,by the X-ray photoelectron spectroscopy(XPS) analyzation,it is discovered that the amount of Nb(4+) is increased as La2O3 d... |
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| Keywords: | Ba(Mg Nb)O3 XPS Ba(Mg Nb)O3 XPS dopants microwave properties |
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