Effects of ZBS glass addition on sintering behavior and properties of Ba6−3x(Sm1−yBiy)8+2xTi18O54(x = 2/3, y = 0.1) microwave dielectric ceramics

2019 ◽  
Vol 30 (12) ◽  
pp. 11475-11481 ◽  
Author(s):  
Shiyuan Wang ◽  
Youqi Ding ◽  
Mengjuan Wu ◽  
Yingchun Zhang
Keyword(s):  
Sintering Behavior ◽  
Microwave Dielectric Ceramics ◽  
Glass Addition ◽  
Microwave Dielectric ◽  
Dielectric Ceramics

Effects of ZnO-Bi2O3-B2O3-SiO2 Glass Additive on Dielectric Properties of CaO-Li2O-Sm2O3-TiO2 Microwave Dielectric Ceramics

2010 ◽  
Vol 148-149 ◽  
pp. 1580-1583
Author(s):  
Liu Shuan Yang ◽  
Xiao Wang ◽  
Jin Liang Huang ◽  
Fei Long Li
Keyword(s):  
Dielectric Properties ◽  
Sintering Temperature ◽  
Liquid Phase Sintering ◽  
Sintering Behavior ◽  
Second Phase ◽  
Microwave Dielectric Ceramics ◽  
Frequency Shifts ◽  
Glass Addition ◽  
Microwave Dielectric ◽  
Dielectric Ceramics

The effects of ZnO-Bi2O3-B2O3-SiO2(ZBBS) glass addition on the sintering behavior, crystalline phase, microstructure and dielectric properties of 16CaO-9Li2O-12Sm2O3-63TiO2(CLST) ceramics were investigated. The results show that ZBBS glass can effectively decrease the sintering temperature of CLST ceramics to 1 000 °C by liquid phase sintering. With the increase of ZBBS content, the second phase，Sm2Ti2O7 is found and increase, which causes the dielectric constant and dielectric loss of CLST decrease. The temperature coefficient of the resonance frequency shifts to positive. The optimum dielectric properties of r = 71, Tan = 0.006, TCF= 5×10-6/°C were obtained in 10wt% LBS glass-doped CLST ceramics sintered at 1 000 °C for 3 h.

Low Temperature Sintering of (Ca0.9375Sr0.0625)0.25(Li0.5Sm0.5)0.75TiO3 Microwave Dielectric Ceramics

2010 ◽  
Vol 663-665 ◽  
pp. 1028-1031
Author(s):  
Yue Ming Li ◽  
Hua Zhang ◽  
Zhu Mei Wang ◽  
Yan Hong ◽  
Zong Yang Shen
Keyword(s):  
Dielectric Properties ◽  
Low Temperature ◽  
Sintering Temperature ◽  
Microwave Dielectric Properties ◽  
Sintering Behavior ◽  
Low Temperature Sintering ◽  
Microwave Dielectric Ceramics ◽  
Microwave Dielectric ◽  
Dielectric Ceramics

The sintering behavior and microwave dielectric properties of the (Ca0.9375Sr0.0625)0.25(Li0.5Sm0.5)0.75TiO3 (CSLST) ceramics doped with different amounts of Li2O-B2O3-SiO2-CaO-Al2O3 (LBSCA) glass were investigated. The sintering temperature of the CSLST ceramics can be effectively reduced over 200oC due to the addition of LBSCA glass. For the 5 wt% LBSCA-doped CSLST ceramics, which are sintered at only 1000 oC for 5 h, show optimum microwave dielectric properties as follows: εr=84.74, Qf=2446 GHz and τf=-12.48 ppm/oC.

Phase Stability and Dielectric Properties of Low Temperature Fired BaTi4O9 Microwave Material with Copper Electrodes in Reducing Atmosphere

2011 ◽  
Vol 284-286 ◽  
pp. 1466-1470
Author(s):  
Cheng Sao Chen ◽  
Pin Yi Chen ◽  
Chen Chia Chou ◽  
Kuei Chih Feng ◽  
Li Wen Chu
Keyword(s):  
Dielectric Properties ◽  
Sintering Behavior ◽  
Microwave Dielectric Ceramics ◽  
Reaction Products ◽  
X Ray ◽  
Reducing Atmosphere ◽  
Copper Electrodes ◽  
Microwave Dielectric ◽  
Properties Of Materials ◽  
Dielectric Ceramics

In this study we report sintering behavior and microstructures of glass-added BaTi4O9microwave dielectric ceramics with copper paste in reducing atmosphere. Experimental results show a buffer layer may form at the interface of Cu-electrode and BaTi4O9microwave dielectric ceramics if the glass did not diffuse smoothly during sintering, and therefore materials exhibited different colors. X-ray results indicate that Cu reacted with Ba seriously to form complicated reaction products, and some BaTi4O9transformed to barium titanate with various ration of Ba/Ti, which may degrade the dielectric properties of materials.

Study on the (1-x)(Mg0.7Zn0.3)TiO3-x(Ca0.61Nd0.26)TiO3 Microwave Dielectric Ceramics

2010 ◽  
Vol 25 (3) ◽  
pp. 332-336
Author(s):  
Zheng-Dong LU ◽  
Chun-Ying SHEN ◽  
Liang LI ◽  
Jian YANG ◽  
Tai QIU
Keyword(s):  
Microwave Dielectric Ceramics ◽  
Microwave Dielectric ◽  
Dielectric Ceramics
Sign in / Sign up

Export Citation Format

Share Document