Preparation and microwave dielectric properties of (1-x)Ca3/5Sm2/5TiO3-xCa2/5TiO3-xLi1/2Nd1/2TiO3 ceramics

被引：0

作者：

Huang, Guohua ^{[1
,2
]}

Xie, Qinglian ^{[1
]}

Xu, Jianmei ^{[3
]}

Pan, Yinsong ^{[1
]}

Zhou, Dongxiang ^{[2
]}

机构：

[1] Guangxi Teachers Educ Univ, Dept Phys & Elect Informat Sci, Nanning 530001, Peoples R China

[2] Huazhong Univ Sci & Technol, Dept Elect Sci & Technol, Wuhan 430074, Peoples R China

[3] China Univ Geosci, Fac Mat Sci & Chem Engn, Wuhan 430074, Peoples R China

来源：

HIGH-PERFORMANCE CERAMICS IV, PTS 1-3 | 2007年 / 336-338卷

关键词：

microwave dielectric ceramics; soft chemistry method; ethylenediaminetetraacetic acid; citric acid;

D O I：

10.4028/www.scientific.net/KEM.336-338.293

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

(1-x) Ca2/5Sm2/5TiO3-x Li1/2Nd1/2TiO3 (CSLNT) ceramics, suitable for use in resonators or filters at microwave frequency, have a high epsilon(r) and a low temperature coefficient of resonant frequency. The effects of calcinations on the microwave dielectric properties of CSLNT were studied. The CSLNT (x = 0.3) ceramics sintered at 1300 degrees C for 3 h showed microwave properties with epsilon(r), of 92, Qf of 5060 GHz and tau(f) of 7.5 ppm/degrees C. The microwave dielectric properties of CSLNT (x = 0.3) ceramics were also improved by soft chemistry methods such as citric acid gel route and ethylenediaminetetraacetic acid (EDTA) chelating method. The excellent microwave properties with epsilon(r) = 96, Qf = 6290 GHz and tau(f) = 6 ppm/degrees C were obtained by EDTA chelating method for CSLNT (x = 0.3) ceramics.

引用

页码：293 / +

页数：2

共 14 条

[1] MICROWAVE CHARACTERISTICS OF BAO-TIO2 CERAMICS PREPARED VIA A CITRATE ROUTE
CHOY, JH
HAN, YS
SOHN, JH
ITOH, M
[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1995, 78 (05) : 1169 - 1172
[2] ANALYSIS AND EVALUATION OF A METHOD OF MEASURING COMPLEX PERMITTIVITY AND PERMEABILITY OF MICROWAVE INSULATORS
COURTNEY, WE
[J]. IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 1970, MT18 (08) : 476 - &
[3] SOL-GEL PREPARATION OF HIGH-TC BI-CA-SR-CU-O AND Y-BA-CA-O SUPERCONDUCTORS
FRANSAER, J
ROOS, JR
DELAEY, L
VANDERBIEST, O
ARKENS, O
CELIS, JP
[J]. JOURNAL OF APPLIED PHYSICS, 1989, 65 (08) : 3277 - 3279
[4] Hakki B. W., 1960, IEEE Trans. Microwave Theory Techn, V8, P402, DOI DOI 10.1109/TMTT.1960.1124749
[5] Preparation, properties and characterization of CaTiO3-modified Pb(Fe1/2Nb1/2)O3 dielectrics
Hu, X
Chen, XM
Wu, SY
[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2003, 23 (11) : 1919 - 1924
[6] Synthesis of (1-x)Ca2/5Sm2/5TiO3-xLi1/2Nd1/2TiO3 ceramic powder via ethylenediaminetetraacetic acid precursor
Huang, GH
Zhou, DX
Xu, JM
Zheng, ZP
Gong, SP
[J]. MATERIALS RESEARCH BULLETIN, 2005, 40 (01) : 13 - 19
[7] Kim WS, 1999, J AM CERAM SOC, V82, P2111
[8] Far-infrared reflectivity spectra of CaTiO3-Li1/2Sm1/2TiO3 microwave dielectrics
Kim, WS
Yoon, KH
Kim, ES
[J]. MATERIALS RESEARCH BULLETIN, 1999, 34 (14-15) : 2309 - 2317
[9] Microwave dielectric characteristics of the Ca2/5Sm2/5TiO3-Li1/2Nd1/2TiO3 ceramics
Kim, WS
Yoon, KH
Kim, ES
[J]. JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 2000, 39 (9B): : 5650 - 5653
[10] LESSING PA, 1989, AM CERAM SOC BULL, V68, P1002

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