Low temperature processing of (Zr0.8Sn0.2)TiO4 ceramics with improved Q factor

被引：23

作者：

Pamu, D. ^{[1
,2
]}

Rao, G. Lakshmi Narayana ^{[1
]}

Raju, K. C. James ^{[1
]}

机构：

[1] Univ Hyderabad, Sch Phys, Hyderabad 46, Andhra Pradesh, India

[2] Indian Inst Technol Guwahati, Dept Phys, Gauhati 39, India

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2011年 / 509卷 / 38期

关键词：

Powders-solid state reaction; Sintering; Grain size; Microwave dielectric properties; MICROWAVE DIELECTRIC-PROPERTIES; ADDITIVES;

D O I：

10.1016/j.jallcom.2011.06.033

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Polycrystalline (Zr0.8Sn0.2)TiO4 (ZST) ceramics have been synthesized by solid-sate reaction method. The effect of B2O3, ZnO-B2O3 or 5ZnO-2B(2)O(3) glass addition (0.2-1.0 wt.%) on microwave dielectric properties of ZST ceramics are investigated. The increase in average grain size via growth of large grains and dissolution of small grains is explained by Ostwald ripening phenomena. The highest Q x f(o) values are found to be 61,500, 48,500 and 51,900 GHz for the ZST dielectric resonators added with B2O3, ZnO-B2O3 and 5ZnO-2B(2)O(3) respectively. The effect of liquid phase sintering on microstructure and microwave dielectric properties of ZST ceramics is discussed. (C)2011 Elsevier B.V. All rights reserved.

引用

页码：9289 / 9295

页数：7

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