Effect of B2O3 addition on the microstructure and microwave dielectric properties of Li2CoTi3O8 ceramics

被引：25
|
作者：
Fang, Liang [1 ,2 ]
Tang, Ying [1 ,2 ]
Chu, Dongjin [1 ,2 ]
Zhou, Huanfu [1 ,2 ]
Zhang, Hui [1 ,2 ]
Chen, Xiuli [1 ,2 ]
Liu, Qinwen [1 ,2 ]
机构：
[1] Guilin Univ Technol, State Key Lab Breeding Base Nonferrous Met & Spec, Guilin 541004, Peoples R China
[2] Guilin Univ Technol, Key Lab Nonferrous Mat & New Proc Technol, Minist Educ, Guilin 541004, Peoples R China
来源：
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2012年 / 23卷 / 02期
关键词：
ABNORMAL GRAIN-GROWTH; LTCC APPLICATIONS; TEMPERATURE; MECHANISM; BEHAVIOR; SYSTEM; MN; SR;
D O I：
10.1007/s10854-011-0421-y
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：
The effects of B2O3 addition on the sintering behavior, microstructure and microwave dielectric properties of the Li2CoTi3O8 ceramics were investigated. The variations of microstructure and composition of Li2CoTi3O8 ceramics were observed by the X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy-dispersive spectroscopy (EDS) analysis. The small amount of B2O3 addition could not only effectively lower the sintering temperatures, but also reduce the temperature coefficient of resonant frequency (tau (f) ) of Li2CoTi3O8 ceramics. The Li2CoTi3O8 ceramic with 2.0 wt% B2O3 addition sintered at 900 A degrees C exhibits good microwave dielectric properties with a epsilon (r) of 26.6, a Q x f value of 21,300 GHz and a small tau (f) of 1.78 ppm/A degrees C. Moreover, B2O3-added Li2CoTi3O8 ceramic has a chemical compatibility with silver, which makes it a promising ceramic for LTCC technology application.
引用
收藏
页码：478 / 483
页数：6
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