LiAlW2O8: A novel temperature stable low-firing microwave dielectric ceramic

被引：13

作者：

Bai, Xuejiao ^{[1
]}

Liu, Peng ^{[1
]}

Fu, Zhifen ^{[1
]}

Feng, Qinqin ^{[1
]}

Zhao, Liping ^{[1
]}

机构：

[1] Shaanxi Normal Univ, Coll Phys & Informat Technol, Xian 710062, Peoples R China

来源：

MATERIALS LETTERS | 2016年 / 178卷

基金：

中国国家自然科学基金;

关键词：

Ceramic; Dielectric; LiAIW(2)O(8); Low-firing;

D O I：

10.1016/j.matlet.2016.04.117

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A novel temperature stable microwave dielectric ceramic LiAlW2O8 was prepared by a conventional solid-state reaction method with a low temperature range from 740 degrees C to 800 degrees C. A monoclinic structure was observed for LiAlW2O8 ceramic coupled with a minor of second unknown phase. The ceramics could be well sintered at 780 degrees C for 4 h with 95.6% relative density and exhibited excellent microwave dielectric properties with permittivity (Er) of 11.7, Qxf value of 23,000 GHz (at 9.0 GHz), and temperature coefficient of resonant frequency (tau(f)) of -5.3 ppm/degrees C. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：68 / 70

页数：3

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