Microwave dielectric properties of Ba2-xSrxLa3Ti3NbO15 ceramics

被引：11
作者：
Fang, Liang [1 ,2 ]
Su, Heping [1 ]
Yu, Qian [1 ]
Zhang, Hui [1 ,2 ]
Cui, Xuemin [2 ]
机构：
[1] Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China
[2] Guangxi Univ, Minist Educ, Key Lab New Proc Technol Nonferrous Met & Mat, Nanning 530004, Peoples R China
来源：
MATERIALS LETTERS | 2008年 / 62卷 / 25期
关键词：
dielectrics; perovskites; electroceramics;
D O I：
10.1016/j.matlet.2008.06.013
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
High dielectric constant and low loss ceramics in the system Ba(2-x)Sr(x)La(3)Ti(3)NbO(15) (x=0-1) have been prepared by conventional solid-state ceramic route. Ba(2-x)Sr(x)La(3)Ti(3)NbO(15) solid solutions adopted A(5)B(4)O(15) cation-deficient hexagonal perovskite structure for all compositions. The materials were characterized at microwave frequencies. They show a linear variation of dielectric properties with the value of x. Their dielectric constant varies from 48.34 to 43.03, quality factor Q(u)xf from 20,291 to 39,088 GHz and temperature variation of resonant frequency from 8 to 1.39 ppm/degrees C as the value of x increases. These low loss ceramics might be used for dielectric resonator (DR) applications. (c) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：4121 / 4123
页数：3
相关论文
共 20 条
[1]   Ca5Nb2TiO12 and Ca5Ta2TiO12:: Low temperature coefficient low loss dielectric materials [J].
Cava, RJ ;
Krajewski, JJ ;
Roth, RS .
MATERIALS RESEARCH BULLETIN, 1999, 34 (03) :355-362
[2]   Microwave dielectric properties of Ba5+nTinNb4O15+3n ceramics [J].
Fang, L ;
Chen, L ;
Zhang, H ;
Hong, XK ;
Diao, CL ;
Liu, HX .
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 2005, 16 (03) :149-151
[3]   Preparation and characterization of new dielectric ceramics Ba5LnTi2Nb3O18 (Ln = La, Nd) [J].
Fang, L ;
Zhang, H ;
Chen, L ;
Yuan, RZ ;
Dronskowski, R .
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 2005, 16 (01) :43-46
[4]   Preparation and characterization of two new dielectric ceramics Ba3La2Ti2Nb2O15 and Ba2La3Ti3NbO15 [J].
Fang, L ;
Zhang, H ;
Hong, XK ;
Meng, FC ;
Yang, JF ;
Huang, TH .
MATERIALS LETTERS, 2004, 58 (30) :3884-3887
[5]   Preparation and characterization of two new dielectric ceramics Ba4NdTiNb3O15 and Ba3Nd2Ti2Nb2O15 [J].
Fang, L ;
Diao, CL ;
Zhang, H ;
Yuan, RZ ;
Dronskowski, R ;
Liu, HX .
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 2004, 15 (12) :803-805
[6]   Preparation, structure and dielectric properties of Ba4LaMNb3O15 (M = Ti, Sn) ceramics [J].
Fang, L ;
Zhang, H ;
Huang, TH ;
Yuan, RZ ;
Dronskowski, R .
MATERIALS RESEARCH BULLETIN, 2004, 39 (11) :1649-1654
[7]   Microwave dielectric properties of Ba5-xSrTa4O15, Ba5Nb,Ta4-xO15 and Sr5NbxTa4-xO15 ceramics [J].
Jawahar, IN ;
Sebastian, MT ;
Mohanan, P .
MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 2004, 106 (02) :207-212
[8]   A5B4O15 (A=Ba, Sr, Mg, Ca, Zn;: B=Nb, Ta) microwave dielectric ceramics [J].
Jawahar, IN ;
Mohanan, P ;
Sebastian, MT .
MATERIALS LETTERS, 2003, 57 (24-25) :4043-4048
[9]   Microwave dielectric properties of MO-La2O3-TiO2 (M = Ca, Sr, Ba) ceramics [J].
Jawahar, IN ;
Santha, NI ;
Sebastian, MT .
JOURNAL OF MATERIALS RESEARCH, 2002, 17 (12) :3084-3089
[10]   Microwave dielectric properties of tungstenbronze type like (Ba1-αSrα)6-3xR8+2xTi18O54 (R = Sm, Nd) solid solutions [J].
Kagomiya, Isao ;
Suzuki, Masafumi ;
Kakimoto, Ken-ichi ;
Ohsato, Hitoshi .
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2007, 27 (8-9) :3059-3062
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