Enhanced Sinterability and Microwave Dielectric Performance of (1-x)ZnAl2O4-xLi4/3Ti5/3O4 Ceramics

被引：7

作者：

Wang, Nan ^{[1
]}

Zhou, Huanfu ^{[1
]}

Gong, Jianzhang ^{[1
]}

Fan, Guangchao ^{[1
]}

Chen, Xiuli ^{[1
]}

机构：

[1] Guilin Univ Technol, Sch Mat Sci & Engn, Guangxi Key Lab Univ Clean Met & Comprehens Utili, State Key Lab Breeding Base Nonferrous Met & Spec, Guilin 541004, Peoples R China

来源：

JOURNAL OF ELECTRONIC MATERIALS | 2016年 / 45卷 / 06期

关键词：

Ceramics; microwave dielectric properties; spinel-based; (1-x)ZnAl2O4-xLi(4/3)Ti(5/3)O(4) (ZALT); CRYSTAL-STRUCTURE; SYSTEM;

D O I：

10.1007/s11664-016-4437-1

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：

(1 - x)ZnAl2O4-xLi(4/3)Ti(5/3)O(4) (ZALT) (x = 0.2, 0.4, 0.6, 0.8) microwave dielectric ceramics were prepared by a solid state reaction method. The preparation, sintering behavior, phase composition and microwave dielectric properties of ZALT ceramics were investigated. ZnAl2O4 could not form a solid solution with Li4Ti5O12. With x increasing from 0.2 to 0.8, the phase compositions of ZALT ceramics changed: (ZnAl2O4 and Li2ZnTi3O8, x = 0.2, 0.4) -> (ZnAl2O4, Li2ZnTi3O8 and Li4Ti5O12, x = 0.6) -> (Li2ZnTi3O8 and Li4Ti5O12, x = 0.8), and the main phase changed from ZnAl2O4 (x = 0.2, 0.4) to Li2ZnTi3O8 (x = 0.6, 0.8). With increasing x values, the sintering temperature was reduced from 1250A degrees C to 1100A degrees C. ZALT ceramics exhibited microwave dielectric properties with epsilon (r) of 13.0-29.0, Q x f values of 30,220-65,580 GHz and tau (f) values of -51.4 ppm/A degrees C to -20.9 ppm/A degrees C.

引用

页码：3157 / 3161

页数：5

共 33 条

[1] Use of X-ray powder diffraction for quantitative analysis of carbonate rock reservoir samples [J].