Li4WO5: A temperature stable low-firing microwave dielectric ceramic with rock salt structure

被引：62

作者：

Li, Jie ^{[1
]}

Fang, Liang ^{[1
]}

Luo, Hao ^{[1
]}

Khaliq, Jibran ^{[3
]}

Tang, Ying ^{[1
]}

Li, Chunchun ^{[1
,2
]}

机构：

[1] Guilin Univ Technol, State Key Lab Breeding Base Nonferrous Met & Spec, Guangxi Univ Key Lab Nonferrous Met Oxide Elect F, Coll Mat Sci & Engn, Guilin 541004, Peoples R China

[2] Guilin Univ Technol, Coll Informat Sci & Engn, Guilin 541004, Peoples R China

[3] Delft Univ Technol, Fac Aerosp Engn, Novel Aerosp Mat Grp, NL-2629 HS Delft, Netherlands

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2016年 / 36卷 / 01期

关键词：

Micorowave dielectric properties; LTCC; Rock salt; Li4WO5; SINTERING BEHAVIOR; SYSTEM; EVOLUTION;

D O I：

10.1016/j.jeurceramsoc.2015.09.033

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A Li4WO5 ceramic with rock salt structure was prepared by the solid-state reaction method and its microwave dielectric properties was demonstrated for the first time. It could be well densified at relatively low sintering temperature (similar to 890 degrees C). XRD and DTA analysis revealed a phase transformation from cubic to orthorhombic occured at 700 degrees C. Excellent microwave dielectric properties with a near-zero temperature coefficient of resonant frequency similar to-2.6 ppm/degrees C, a relative permittivity similar to 8.6 and a quality factor similar to 23,100 GHz (at 11.0 GHz) was obtained. Li4WO5 was found to be chemically compatible with silver powders when sintered at 890 degrees C. All the results indicate that the Li4WO5 ceramic is a promising candidate as a base material in low temperature cofired ceramic technology. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：243 / 246

页数：4

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