A novel temperature stable Mg0.5Ti0.5NbO4-based microwave dielectric material

被引：7

作者：

Zhao, Liping ^{[1
]}

Liu, Peng ^{[1
]}

Fu, Zhifen ^{[1
,2
]}

机构：

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

[2] Anhui Univ Sci & Technol, Coll Sci, Huainan 232001, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS | 2019年 / 250卷

基金：

中国国家自然科学基金;

关键词：

Mg0.5Ti0.5NbO4-based ceramics; Microstructure; X-ray diffraction; Microwave dielectric properties; CERAMICS;

D O I：

10.1016/j.mseb.2019.114424

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A novel temperature stable Mg0.5Ti0.5NbO4-based microwave dielectric ceramic was fabricated by using the nanopowders (317 nm) derived from high energy ball milling (HEBM) method. An orthorhombic ixiolite structure was detected for Mg0.5Ti0.5NbO4 ceramics coupled with a minor of second phase Mg0.167Nb0.33Ti0.5O2. With increasing sintering temperature, the amount of Mg0.167N130.33Ti0.5O2 phase decreased as well as the dielectric constant (epsilon(r)) and temperature coefficient of resonant frequency (tau(f)). The ceramics sintered at 1140 degrees C for 4 h exhibited optimum microwave dielectric properties epsilon(r) = 38.8, Q x f = 19,710 GHz and tau(f) = 1.3 ppm/degrees C.

引用

页数：5

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