Effects of Crystal Structure on Microwave Dielectric Properties of Ceramics

被引：25

作者：

Kim, Eung Soo ^{[1
]}

Jeon, Chang Jun ^{[1
]}

Kim, Sung Joo ^{[1
]}

Kim, Su Jung ^{[1
]}

机构：

[1] Kyonggi Univ, Dept Mat Engn, Suwon 443760, South Korea

来源：

JOURNAL OF THE KOREAN CERAMIC SOCIETY | 2008年 / 45卷 / 05期

关键词：

Microwave dielectric properties; Octahedral distortion; Dielectric polarizabilities; Bond valence;

D O I：

10.4191/kcers.2008.45.5.251

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：

Microwave dielectric properties of MgTiO3, MgWO4, MgNb2O6, and MgTa2O6 were investigated based on the structural characteristics. The dielectric constant (K) was dependent on the dielectric polarizabilities of the specimens, and the deviation of the observed dielectric polarizabilities (alpha(obs)) from the theoretical dielectric polarizabilities (alpha(theo).) were decreased with increasing of Mg-site bond valence. Quality factors (Qf) were affected by the sharing type of MgO6 and BO6 octahedra. Temperature coefficient of resonant frequency (TCF) was decreased with increasing of average octahedral distortion.

引用

页码：251 / 255

页数：5

共 13 条

[1] BOND-VALENCE PARAMETERS FOR SOLIDS [J].

BRESE, NE ;

OKEEFFE, M .

ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 1991, 47 :192-197

[2] BOND-VALENCE PARAMETERS OBTAINED FROM A SYSTEMATIC ANALYSIS OF THE INORGANIC CRYSTAL-STRUCTURE DATABASE [J].

BROWN, ID ;

ALTERMATT, D .

ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 1985, 41 (AUG) :244-247

[3]

Hakki B.W., 1960, IEEE T MICROWAVE THE, V8, P402, DOI [10.1109/TMTT.1960.1124749, DOI 10.1109/TMTT.1960.1124749]

[4] RELATIONSHIPS BETWEEN DOPANTS, MICROSTRUCTURE AND THE MICROWAVE DIELECTRIC-PROPERTIES OF ZRO2-TIO2-SNO2 CERAMICS [J].

IDDLES, DM ;

BELL, AJ ;

MOULSON, AJ .

JOURNAL OF MATERIALS SCIENCE, 1992, 27 (23) :6303-6310

[5] A Rietveld-analysis program RIETAN-98 and its applications to zeolites [J].

Izumi, F ;

Ikeda, T .

EUROPEAN POWDER DIFFRACTION, PTS 1 AND 2, 2000, 321-3 :198-203

[6]

Kim E.S., 2004, J CERAM SOC JPN, V112, P1645

[7] Microwave dielectric properties of (1-x)CaTiO3-xLi1/2Sm1/2TiO3 ceramics [J].

Kim, ES ;

Yoon, KH .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2003, 23 (14) :2397-2401

[8] INFRARED REFLECTANCE SPECTRA OF DOPED BATI4O9 [J].

MHAISALKAR, SG ;

READEY, DW ;

AKBAR, SA ;

DUTTA, PK ;

SUMNER, MJ ;

ROKHLIN, R .

JOURNAL OF SOLID STATE CHEMISTRY, 1991, 95 (02) :275-282

[9]

Nishikawa T., 1987, 1987 IEEE MTT-S International Microwave Symposium Digest (Cat. No.87CH2395-2), P277, DOI 10.1109/MWSYM.1987.1132383

[10] Relationship between the bond valence and the temperature coefficient of the resonant frequency in the complex perovskite (Pb1-xCax)[Fe0.5(Nb1-yTay)0.5]O3 [J].

Park, HS ;

Yoon, KH ;

Kim, ES .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2001, 84 (01) :99-103

← 1 2 →