Novel 5MgO-3Li2O-4WO3 ceramic: preparation, phase evolution and its microwave dielectric properties

被引：3

作者：

Zhou, Huanfu ^{[1
]}

Gong, Jianzhang ^{[1
]}

Xu, Jungu ^{[1
]}

Fan, Guangchao ^{[1
]}

Chen, Xiuli ^{[1
]}

机构：

[1] Guilin Univ Technol, State Key Lab Breeding Base Nonferrous Met & Spec, Key Lab Nonferrous Mat & New Proc Technol, Minist Educ,Coll Mat Sci & Engn, Guilin 541004, Peoples R China

来源：

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2016年 / 27卷 / 06期

关键词：

TEMPERATURE; WOLFRAMITE; SCHEELITE; ZN; CA; MG; NI;

D O I：

10.1007/s10854-016-4574-6

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A new low-temperature firing microwave dielectric ceramic with the composition of 5MgO-3Li(2)O-4WO(3) was synthesized by a solid-state reaction method. The ceramic was found to be a novel pure compound (Li2Mg2W2O9) when the sintering temperature was 720-760 degrees C, but transformed to mixed phases with Li2Mg2W2O9 and Li2WO4 when the sintering temperature was 820-840 degrees C. The ceramic sintered at similar to 820 degrees C exhibited good properties with relative permittivity of similar to 10.3, Q x f value about 20,537 GHz (at the frequency f similar to 11 GHz) and a negative temperature coefficient of resonant frequency of -76.9 ppm/degrees C. 5MgO-3Li(2)O-4WO(3) ceramic had a promising application in low-temperature cofired ceramic technology.

引用

页码：6389 / 6394

页数：6

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