东篱科研大数据发现系统（DRDS）

位置：成果数据库 > 期刊 > 期刊详情页

Effects of BaCu（B2Os） addition on sintering temperature and microwave dielectric properties of BasNb4O15-BaWO4 ceramics

ISSN号：1674-1056
期刊名称：《中国物理B：英文版》
时间：0
分类：TQ174.756[化学工程—陶瓷工业;化学工程—硅酸盐工业] TQ174.13[化学工程—陶瓷工业;化学工程—硅酸盐工业]
作者机构：[1]State Key Laboratory ofElectronic Thin Fillms and Integrated Devices,University of Electronic Science and Technology of China, Chengdu 610054, China
相关基金：Project supported by the National Natural Science Foundation of China （Grant Nos. 51372031, 61171047, 51132003, and 61271038）, the Program for New Century Excellent Talents in University, China （Grant No. NCET-12-0090）, and Science Fund from the Science and Technology Department of Sichuan Province, China （Grant No. 2013GZX0144）.

关键词：微波介电性能, 烧结陶瓷, 烧结助剂, 烧结温度, X-射线衍射分析, 微波介电特性, 微观结构, BCB, low-temperature co-fired ceramics, composite ceramics, BaCu（B2O5）（BCB）

中文摘要：

The effects of BaCu(B2O5)(BCB) addition on the microstructure, phase formation, and microwave dielectric properties of Ba5Nb4O15–BaWO4ceramic are investigated. As a sintering aid, BaCu(B2O5) ceramic could effectively lower the sintering temperature of Ba5Nb4O15–BaWO4ceramic from 1100?C to 950?C due to the liquid-phase effect. Meanwhile,BaCu(B2O5) addition effectively improves the densification of Ba5Nb4O15–BaWO4ceramic and significantly influences the microwave dielectric properties. X-ray diffraction analysis reveals that Ba5Nb4O15and BaWO4coexist with no crystal phase of BaCu(B2O5) in the sintered ceramics. The Ba5Nb4O15–BaWO4ceramics with 1.0 wt% BaCu(B2O5) sintered at 950?C for 2 h presents good microwave dielectric properties of εr = 19.0, high Q × f of 33802 GHz and low τfof2.5 ppm/?C.

英文摘要：

The effects of BaCu（B2Os）（BCB） addition on the microstructure, phase formation, and microwave dielectric proper- ties of BasNb4015-BaWO4 ceramic are investigated. As a sintering aid, BaCu（B2Os） ceramic could effectively lower the sintering temperature of BasNb4015-BaWO4 ceramic from 1100 ℃ to 950 ℃ due to the liquid-phase effect. Meanwhile, BaCu（B2Os） addition effectively improves the densification of BasNb4015-BaWO4 ceramic and significantly influences the microwave dielectric properties. X-ray diffraction analysis reveals that BasNb4015 and BaWO4 coexist with no crystal phase of BaCu（B2Os） in the sintered ceramics. The BasNb4015-BaWO4 ceramics with 1.0 wt% BaCu（B2Os） sintered at 950 ℃ for 2 h presents good microwave dielectric properties of er = 19.0, high Q× f of 33802 GHz and low vf of 2.5 ppm/℃.

同期刊论文项目