Microwave Dielectric Properties of Gallium-Doped Hexagonal Barium Titanate Ceramics

2003 ◽  
Vol 86 (3) ◽  
pp. 511-513 ◽  
Author(s):  
Antonio Feteira ◽  
Kumaravinothan Sarma ◽  
Neil McN. Alford ◽  
Ian M. Reaney ◽  
Derek C. Sinclair
Keyword(s):  
Dielectric Properties ◽  
Barium Titanate ◽  
Microwave Dielectric Properties ◽  
Microwave Dielectric ◽  
Titanate Ceramics

Microwave Dielectric Properties of Gallium-Doped Hexagonal Barium Titanate Ceramics.

ChemInform ◽  
2003 ◽  
Vol 34 (27) ◽  
Author(s):  
Antonio Feteira ◽  
Kumaravinothan Sarma ◽  
Neil McN. Alford ◽  
Ian M. Reaney ◽  
Derek C. Sinclair
Keyword(s):  
Dielectric Properties ◽  
Barium Titanate ◽  
Microwave Dielectric Properties ◽  
Microwave Dielectric ◽  
Titanate Ceramics

Microwave Dielectric Properties of Lanthanide Titanate Ceramics

1993 ◽  
Vol 32 (Part 1, No. 9B) ◽  
pp. 4327-4331 ◽  
Author(s):  
Junichi Takahashi ◽  
Keisuke Kageyama ◽  
Kouhei Kodaira
Keyword(s):  
Dielectric Properties ◽  
Microwave Dielectric Properties ◽  
Microwave Dielectric ◽  
Titanate Ceramics

Low Temperature Sintering and Microwave Dielectric Properties of Zinc Titanate Ceramics for LTCC Applications

2008 ◽  
Vol 368-372 ◽  
pp. 179-182
Author(s):  
Zong Chi Liu ◽  
Dong Xiang Zhou ◽  
Shu Ping Gong
Keyword(s):  
Dielectric Properties ◽  
Sintering Temperature ◽  
Microwave Dielectric Properties ◽  
Sintering Behavior ◽  
Solid State Method ◽  
Zinc Titanate ◽  
Microwave Dielectric ◽  
Conventional Solid State Method ◽  
State Method ◽  
Titanate Ceramics

The effects of CuO-MoO3 addition on the sintering behavior and microwave dielectric properties of ZnO-TiO2 ceramics were investigated. ZnO-TiO2 ceramics were prepared with conventional solid-state method and sintered at temperatures from 850 to 1050 °C. The sintering temperature of ZnO-TiO2 ceramics with CuO-MoO3 addition could be effectively reduced to 950 °C due to the liquid phase effects resulting from the additives. A proper amount of CuO-MoO3 addition could effectively improve the densification and microwave dielectric properties of ZnO-TiO2 ceramics. ZnO-TiO2 ceramics with 3 wt% addition sintered at 950 °C for 4 h exhibited better microwave dielectric properties as follows: εr of 26.8, a Q×f value of 16780 GHz at 5.42 GHz, and a τ f value of +34.7 ppm/°C.

Effect of bismuth addition on sintering behavior and microwave dielectric properties of zinc titanate ceramics

2005 ◽  
Vol 34 (1) ◽  
pp. 119-124 ◽  
Author(s):  
Hsun-Chin Chen ◽  
Ming-Hang Weng ◽  
Jui-Hong Horng ◽  
Mau-Phon Houng ◽  
Yeong-Her Wang
Keyword(s):  
Dielectric Properties ◽  
Microwave Dielectric Properties ◽  
Sintering Behavior ◽  
Zinc Titanate ◽  
Microwave Dielectric ◽  
Titanate Ceramics

Effect of ZnO-V2O5 Co-Doping on Phase Stability and Microwave Dielectric Properties of ZnTiO3 Ceramics

2007 ◽  
Vol 336-338 ◽  
pp. 297-300 ◽  
Author(s):  
Jing Yan ◽  
Zhen Xing Yue ◽  
Jin Wang ◽  
Fei Zhao ◽  
Zhi Lun Gui ◽  
...  
Keyword(s):  
Dielectric Properties ◽  
Low Temperature ◽  
Sintering Temperature ◽  
Microwave Dielectric Properties ◽  
Sintering Process ◽  
Quality Factors ◽  
Zinc Titanate ◽  
Co Doping ◽  
Microwave Dielectric ◽  
Titanate Ceramics

Zinc titanate ceramics having excellent dielectric properties and low sintering temperature are promising materials for RF/microwave multilayer devices. In this paper, the ZnO-V2O5 addition was added to promote the sintering process in order to obtain low-temperature sintered ceramics with high quality factors. The sintering addition could also restrain ZnTiO3 phase from decomposition. Using this method, low-temperature sintered zinc titanate ceramics with excellent microwave dielectric properties of εr~ 25.3, Q×f~15200GHz, and τf ~ -16 ppm/oC were obtained at sintering temperature of 800oC. The low-fired mechanism, microstructure, phase formation and microwave dielectric properties of ceramics were investigated by XRD, SEM, EDS and network analysis techniques, respectively.

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