MICROWAVE DIELECTRIC-PROPERTIES AND STRUCTURE OF THE BA6-3XSM8+2XTI18O54 SOLID-SOLUTIONS

被引：99

作者：

OHSATO, H ^{[1
]}

OHHASHI, T ^{[1
]}

KATO, H ^{[1
]}

NISHIGAKI, S ^{[1
]}

OKUDA, T ^{[1
]}

机构：

[1] SUMITOMO MET CERAM INC,MIDORI KU,NAGOYA,AICHI 458,JAPAN

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1995年 / 34卷 / 01期

关键词：

MICROWAVE DIELECTRIC RESONATOR; CERAMICS; BA6-3XSM8+2XTI18O54(3BAO.2SM(2)O(3).9TIO(2)) SOLID SOLUTIONS; BAO-CENTER-DOT-SM2O3-CENTER-DOT-4TIO(2); CRYSTAL STRUCTURE; DTA;

D O I：

10.1143/JJAP.34.187

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The microwave dielectric properties of the Ba6-3xSm8+2xTi18O54 (0.3 less than or equal to x less than or equal to 0.7) solid solutions are studied in relation to the crystal structure. Q . f of suitable materials obtained by optimizing the sintering condition is in inverse proportion to the dielectric constant (epsilon(r)). With increase of x, epsilon(r) decreased and and Q . f increased. Good-quality microwave resonators with epsilon(r)=80 and Q . f=9720 GHz can be obtained in the composition range of x=0.5 to 0.7 in the solid-solution region. Substitution of 2Sm(3+) for 3Ba(2+) in the large cation sites results in the creation of vacancies and crystal distortion, showing that the shrinkage of the TiO6 octahedral site plays an important role for improvement of the microwave dielectric properties.

引用

页码：187 / 191

页数：5

共 22 条

[1]

Bolton R. L., 1968, THESIS U ILLINOIS UR

[2]

Hakki BW, 1960, IRE T MICROWAVE THEO, V8, P402, DOI DOI 10.1109/TMTT.1960.1124749

[3]

HYUGA T, 1986, CPM8631 EL COMM SOC, P401

[4]

KATO J, 1992, CERAM JPN, V27, P728

[5] BA(ZN1/3TA2/3)O-3 CERAMICS WITH LOW DIELECTRIC LOSS AT MICROWAVE-FREQUENCIES [J].

KAWASHIMA, S ;

NISHIDA, M ;

UEDA, I ;

OUCHI, H .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1983, 66 (06) :421-423

[6]

KAWASHIMA S, 1985, 87TH ANN M AM CER SO

[7] SYNTHESIS AND CRYSTAL-CHEMISTRY OF BAND2TI3O10, BAND2TI5O14, AND ND4TI9O24 [J].

KOLAR, D ;

GABERSCEK, S ;

VOLAVSEK, B ;

PARKER, HS ;

ROTH, RS .

JOURNAL OF SOLID STATE CHEMISTRY, 1981, 38 (02) :158-164

[8]

Kolar D., 1978, Berichte der Deutschen Keramischen Gesellschaft, V55, P346

[9]

MATVIENKO VP, 1984, GEMATOL TRANSFUZIOL, V29, P17

[10]

NISHIGAKI S, 1987, AM CERAM SOC BULL, V66, P1405

← 1 2 3 →