[1]胡长征,朱其华,孙振.Sr4RTiNb9O30(R=La,Pr,Nd)陶瓷的介电特性[J].常州大学学报(自然科学版),2017,(01):7-11,40.[doi:doi:10.3969/j.issn.2095-0411.2017.01.002]
　HU Changzheng,ZHU Qihua,SUN Zhen.Dielectric Properties of Sr4RTiNb9O30(R= La, Pr, Nd)Ceramics[J].Journal of Changzhou University(Natural Science Edition),2017,(01):7-11,40.[doi:doi:10.3969/j.issn.2095-0411.2017.01.002]
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Sr4RTiNb9O30(R=La,Pr,Nd)陶瓷的介电特性()
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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
期数:
2017年01期
页码:
7-11,40
栏目:
材料科学与工程
出版日期:
2017-01-28

文章信息/Info

Title:
Dielectric Properties of Sr4RTiNb9O30(R= La, Pr, Nd)Ceramics
作者:
胡长征; 朱其华; 孙振
桂林理工大学 材料科学与工程学院,广西有色金属及特色材料加工省部共建国家重点实验室培育基地,有色金属及材料加工新技术教育部重点实验室,有色金属氧化物电功能材料与器件广西高校重点实验室,广西 桂林 541004
Author(s):
HU Changzheng;  ZHU Qihua;  SUN Zhen
College of Material Science and Engineering,Guilin University of Technology, Guangxi Ministry-Province Jointly-Constructed Cultivation Base for State Key Laboratory of Processing for Non-ferrous Metal and Featured Materials, Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, Ministry of Education, Guangxi Universities Key Laboratory of Non-Ferrous Metal Oxide Electronic Functional Materials and Devices,Guilin 541004, China
关键词:
钨青铜结构;  介电常数;  介电损耗;  温度稳定型;  陶瓷电容器;  铁电性
Keywords:
tungsten bronze structure;  dielectric constant;  dielectric loss;  temperature stable;  ceramic capacitance;  ferroelectric
分类号:
TB 303
DOI:
doi:10.3969/j.issn.2095-0411.2017.01.002
文献标志码:
A
摘要:
采用传统固相法合成了Sr4RTiNb9O30(R= La、Pr、Nd)陶瓷,通过X射线衍射仪分析其物相结构,表明Sr4RTiNb9O30(R= La、Pr、Nd)陶瓷均为纯相,是空间群为pnma的正交结构; 通过扫描电子显微镜观察陶瓷样品表面形貌,发现陶瓷样品颗粒均匀且致密性良好; 通过精密阻抗分析仪测试其常温和高温介电性能,结果表明:室温时,介电常数和介电损耗均随频率增大而减小; 常温至300 ℃,3种陶瓷的介电常数和介电损耗均保持稳定,1MHz下电容变化率为±10%; 铁电性能测试显示Sr4PrTiNb9O30具有微弱的铁电性。
Abstract:
Sr4RTiNb9O30(R= La, Pr, Nd)ceramics were prepared by the traditional solid state method. The X-ray diffraction result showed that the ceramics are pure phase withpnma orthorhombic structure. The ceramics have homogeneous and compact fine grains by scanning electron microscope.The room and high temperature dielectrics properties testing by precision impedance analyzer showed that the room dielectric constant and loss of the three ceramics decrease with increasing frequencies, while the dielectric constant and loss keep stableand permittivity change about ±10% at 1MHz from room temperature to 300℃. The ferroelectric testing system indicated that Sr4PrTiNb9O30 has weak ferroelectricity.

参考文献/References:

[1]WANG S F, LI J H, HSU Y F, et al. Dielectric properties and microstructures of non-reducible high-temperature stable X9R ceramics[J]. Journal of the European Ceramic Society, 2013, 33(10): 1793-1799.
[2]LI L, HAN Y, ZHANG P, et al. Synthesis and characterization of BaTiO3-based X9R ceramics[J]. Journal of Materials Science, 2009, 44(20): 5563-5568.
[3]SIMON A, RAVEZ J. Solid-state chemistry and non-linear properties of tetragonal tungsten bronzes materials[J]. Comptes Rendus Chimie, 2006, 9(10): 1268-1276.
[4]ZHENG X H, CHEN X M. Co-modification of Ba5NdTi3Ta7O30 dielectric ceramics by substitution and introducing secondary phase[J]. Journal of Electroceramics, 2002, 8(3): 195-202.
[5]BIJUMON P V, KOHLI V, PARKASH O, et al. Dielectric properties of Ba5MTi3A7O30[M= Ce, Pr, Nd, Sm, Gd, Dy and Bi; A= Nb, Ta]ceramics[J]. Materials Science and Engineering: B, 2004, 113(1): 13-18.
[6]KOSHY P, KUMARI L P, SEBASTIAN M T. Preparation, characterization and dielectric properties of Ba3Ln3Ti5Nb5O30(Ln= La, Nd)ceramics[J]. Journal of Materials Science: Materials in Electronics, 1998, 9(1): 43-45.
[7]CHEN X M, SUN Y H, ZHENG X H. High permittivity and low loss dielectric ceramics in the BaO-La2O3-TiO2-Ta2O5 system[J]. Journal of the European Ceramic Society, 2003, 23(10): 1571-1575.
[8]STENNETT M C, MILES G C, SHARMAN J, et al. A new family of ferroelectric tetragonal tungsten bronze phases, Ba2MTi2X3O15 [J]. Journal of the European Ceramic Society, 2005, 25(12): 2471-2475.
[9]FANG L, PENG X, LI C, et al. Ba4Ln2Fe2Ta8O30(Ln= Pr, Eu): Temperature-stable low loss dielectrics with a tungsten bronze structure[J]. Journal of the American Ceramic Society, 2010, 93(4): 945-947.
[10]WANG L, SAKKA Y, RUSAKOV D A, et al. Novel incipient ferroelectrics based on Ba4MNbxTa10-xO30 where M= Zn, Mg, Co, Ni[J]. Chemistry of Materials, 2011, 23(10): 2586-2594.
[11]WEI T, WANG Y Q, ZHOU Q J, et al. Bright reddish-orange emission and enhanced electrical properties of Sm-doped unfilled tetragonal tungsten bronze Ba4LaTiNb9O30[J]. Ceramics International, 2014, 40(10): 16647-16651.
[12]HU C, HOU L, FANGL, et al. Preparation and dielectric properties of unfilled tungsten bronze ferroelectrics Ba4RETiNb9O30[J]. Journal of Alloys and Compounds, 2013, 581: 547-552.
[13]BODEUX R, MICHAU D, JOSSE M, et al. Dielectric properties of tetragonal tungsten bronze films deposited by RF magnetron sputtering[J]. Solid State Sciences, 2014, 38: 112-118.
[14]HU C, SUN Z, ZHU Q, et al. Dielectric and ferroelectric properties of unfilled tungsten bronze KBa3RNb10O30 ceramics[J]. Journal of Materials Science: Materials in Electronics, 2015, 26(1): 515-520.
[15]JOSSE M, BIDAULT O, ROULLAND F, et al. The Ba2LnFeNb4O15 “tetragonal tungsten bronze”: towards RT composite multiferroics[J]. Solid State Sciences, 2009, 11(6): 1118-1123.
[16]ROULLAND F, JOSSE M, CASTEL E, et al. Influence of ceramic process and Eu content on the composite multiferroic properties of the Ba6-2xLn2xFe1+xNb9-xO30 TTB system[J]. Solid State Sciences, 2009, 11(9): 1709-1716.

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备注/Memo

备注/Memo:
收稿日期:2016-11-14。
基金项目:国家自然科学基金资助项目(11564009); 广西自然科学基金资助项目(2013GXNSFBA019230,2014GXNSFAA118350)。
作者简介:胡长征(1979—),男,湖北广水人,博士,副研究员,主要从事电容器材料研究。
更新日期/Last Update: 2017-02-10