A5B4O15 (A=Ba, Sr, Mg, Ca, Zn;: B=Nb, Ta) microwave dielectric ceramics

被引：81

作者：

Jawahar, IN

Mohanan, P

Sebastian, MT ^{[1
]}

机构：

[1] CSIR, Reg Res Lab, Ceram Technol Div, Thiruvananthapuram 695019, Kerala, India

[2] Cochin Univ Sci & Technol, Dept Elect, Cochin 682022, Kerala, India

来源：

MATERIALS LETTERS | 2003年 / 57卷 / 24-25期

关键词：

dielectrics; dielectric resonators; microwave ceramics; hexagonal perovskites; oxides;

D O I：

10.1016/S0167-577X(03)00262-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The microwave dielectric properties of A(5)B(4)O(15) (A=Ba, Sr, Mg, Ca, Zn; B=Nb, Ta) ceramics are investigated. The ceramics are prepared through the solid-state ceramic route. The dielectric properties are studied at microwave frequencies and structure and microstructure by XRD and scanning electron micrograph (SEM) methods. The ceramics show epsilon(tau) in the range 11-51, Q x f is in the range 2400-88,000 GHz and tau(f') in the range -73-232 ppm/degreesC. (C) 2003 Elsevier Science B.V All rights reserved.

引用

页码：4043 / 4048

页数：6

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