Microwave Dielectric Properties of Ca[(Li1/3Nb2/3)0.92Zr0.08]O3−δ Ceramics with Glass Addition

2014 ◽  
Vol 556-562 ◽  
pp. 318-321
Author(s):  
Gang Xiong
Keyword(s):  
Dielectric Properties ◽  
Temperature Coefficient ◽  
Sintering Temperature ◽  
Microwave Dielectric Properties ◽  
Glass Content ◽  
Glass Addition ◽  
Microwave Dielectric ◽  
Resonator Frequency

The effects of ZnO-B2O3-Na2O(ZBN) glass on the sinterability and microwave dielectric properties of Ca [(Li1/3Nb2/3)0.92Zr0.08]O3−δ −0.05TiO2 ceramics were investigated . ZBN glass doping can effectively reduce sintering temperatue by 100~150oC. The temperature coefficient of resonator frequency τf increased with an increase of ZBN glass content and sintering temperatue. When ZBN glass of 1.8wt% were added, the optimum microwave dielectric properties: εr=32.8, Qf =13420GHz and τf= − 4.3×10−6/oC were obtained at the sintering temperature of 1000oC.

Influence of ZnO-B2O3-Na2O Glass on Microwave Dielectric Properties of Ca[(Li1/3Nb2/3)0.8Sn0.2]O3−δ−0.1TiO2 Ceramics

2010 ◽  
Vol 663-665 ◽  
pp. 629-632
Author(s):  
Gang Xiong
Keyword(s):  
Dielectric Properties ◽  
Temperature Coefficient ◽  
Sintering Temperature ◽  
Microwave Dielectric Properties ◽  
Glass Content ◽  
Microwave Dielectric ◽  
Resonator Frequency

The effects of ZnO-B2O3-Na2O(ZBN) glass on the sinterability and microwave dielectric properties of Ca[(Li1/3Nb2/3)0.8Sn0.2]O3−δ−0.1TiO2 (CLNS−0.1TiO2) ceramics were investigated . ZBN glass doping can effectively reduce sintering temperatue by 100~150°C. The temperature coefficient of resonator frequency τf increased with an increase of ZBN glass content and sintering temperatue. When ZBN glass of 3wt% were added, the optimum microwave dielectric properties: εr =28.8,Qf =10960GHz and τf = − 7.5×10−6/°C were obtained at the sintering temperature of 1050°C.

Effect of Glass Additions on Ca[(Li1/3Nb2/3)0.92Zr0.08]O3−δ Microwave Ceramics

2012 ◽  
Vol 535-537 ◽  
pp. 805-808
Author(s):  
Hui Xiong ◽  
Gang Xiong ◽  
Cui Hua She
Keyword(s):  
Dielectric Properties ◽  
Temperature Coefficient ◽  
Sintering Temperature ◽  
Microwave Dielectric Properties ◽  
Glass Content ◽  
Microwave Ceramics ◽  
Microwave Dielectric ◽  
Resonator Frequency

The effects of ZnO-B2O3-Na2O(ZBN) glass on the sinterability and microwave dielectric properties of Ca[(Li1/3Nb2/3)0.92Zr0.08]O3−δ ceramics were investigated . ZBN glass doping can effectively reduce sintering temperatue by 100~150°C. The temperature coefficient of resonator frequency τf increased with an increase of ZBN glass content and sintering temperatue. When ZBN glass of 1.8wt% were added, the optimum microwave dielectric properties: εr =22.1,Qf =18360GHz and τf = − 9.8×10−6/°C were obtained at the sintering temperature of 1000°C.

Microwave Dielectric Properties of Low-Temperature Sintered Ca[(Li1/3Nb2/3)0.95Zr0.05]O3−δ−0.04TiO2 Ceramics

2012 ◽  
Vol 535-537 ◽  
pp. 832-835
Author(s):  
Hui Xiong ◽  
Gang Xiong ◽  
Cui Hua She
Keyword(s):  
Dielectric Properties ◽  
Low Temperature ◽  
Temperature Coefficient ◽  
Sintering Temperature ◽  
Microwave Dielectric Properties ◽  
B2o3 Content ◽  
Microwave Dielectric ◽  
Resonator Frequency

The effects of B2O3 on the sinterability and microwave dielectric properties of Ca[(Li1/3Nb2/3)0.95Zr0.05]O3−δ−0.04TiO2 (CLNZ−0.04TiO2) ceramics were investigated . B2O3 doping can effectively reduce sintering temperatue by 150~200°C. The temperature coefficient of resonator frequency τf increased with an increase of B2O3 content and sintering temperatue. When B2O3 of 2wt% were added, the optimum microwave dielectric properties: εr =31.8,Qf =17240GHz and τf = − 5.9×10−6/°C were obtained at the sintering temperature of 950°C.

Effect of B2O3 on Microwave Dielectric Properties of Ca[(Li1/3Nb2/3)0.92Zr0.08]O3−δ−0.05TiO2 Ceramics

2011 ◽  
Vol 181-182 ◽  
pp. 324-327
Author(s):  
Gang Xiong
Keyword(s):  
Dielectric Properties ◽  
Temperature Coefficient ◽  
Sintering Temperature ◽  
Microwave Dielectric Properties ◽  
Microwave Dielectric ◽  
Resonator Frequency

The effects of B2O3 on the sinter ability and microwave dielectric properties of Ca [(Li1/3Nb2/3)0.92Zr0.08]O3−δ−0.05TiO2 (CLNZ−0.05TiO2) ceramics were investigated. B2O3 doping can effectively reduce sintering temperature by 150~200 °C. The temperature coefficient of resonator frequency τf increased with an increase of B2O3 content and sintering temperature. When B2O3 of 2.5 wt % were added, the optimum microwave dielectric properties: εr =34.2, Qf =15680GHz and τf = − 4.7×10−6/°C were obtained at the sintering temperature of 950 °C.

Microwave Dielectric Properties of B2O3 Doped Ca [(Li1/3Nb2/3)0.95Zr0.05]O3−δ Ceramics

2014 ◽  
Vol 556-562 ◽  
pp. 314-317
Author(s):  
Gang Xiong
Keyword(s):  
Dielectric Properties ◽  
Temperature Coefficient ◽  
Sintering Temperature ◽  
Microwave Dielectric Properties ◽  
Microwave Dielectric ◽  
Resonator Frequency

The effects of B2O3 on the sinterability and microwave dielectric properties of Ca [(Li1/3Nb2/3)0.95Zr0.05]O3−δ ceramics were investigated. B2O3 doping can effectively reduce sintering temperatue by 150~200oC. The temperature coefficient of resonator frequency τf increased with an increase of B2O3 content and sintering temperatue. When B2O3 of 2wt% were added, the optimum microwave dielectric properties: εr=28.7,Qf =13580GHz and τf= − 7.8×10−6/oC were obtained at the sintering temperature of 950oC.

scholarly journals Crystal structure and microwave dielectric properties of Ca[(1/3Nb2/3)0.92Zr0.08]O3−δ-xTiO2 ceramics

2018 ◽  
Vol 175 ◽  
pp. 01022
Author(s):  
Wen Guo ◽  
Gang Xiong
Keyword(s):  
Crystal Structure ◽  
Dielectric Properties ◽  
Temperature Coefficient ◽  
Sintering Temperature ◽  
Microwave Dielectric Properties ◽  
Microwave Dielectric ◽  
Resonator Frequency

The effects of B2O3 on the sinterability and microwave dielectric properties of Ca[(Li1/3Nb2/3)0.92Zr0.08]O3−δ ceramics were investigated. B2O3 doping can effectively reduce sintering temperatue by 150~200°C. The temperature coefficient of resonator frequency τf increased with an increase of B3O3 content and sintering temperatue. When B2O3 of 2wt% were added, the optimum microwave dielectric properties: εr =28.5,Qf =13560GHz and τf = − 7.6×10–6/°C were obtained at the sintering temperature of 950°C.

Effects of CuO and V2O5 Addition on Sintering Behavior and Microwave Dielectric Properties of (1-x)Ca2P2O7-xTiO2

2007 ◽  
Vol 336-338 ◽  
pp. 279-282
Author(s):  
In Sun Cho ◽  
Sang Gu Kang ◽  
Dong Wan Kim ◽  
Kug Sun Hong
Keyword(s):  
Dielectric Constant ◽  
Dielectric Properties ◽  
Resonant Frequency ◽  
Temperature Coefficient ◽  
Quality Factor ◽  
Sintering Temperature ◽  
Microwave Dielectric Properties ◽  
Sintering Behavior ◽  
Microwave Dielectric

The effects of CuO and V2O5 addition on sintering behaviors and microwave dielectric properties of 0.7Ca2P2O7-0.3TiO2 ceramics were investigated. With CuO and V2O5 addition, the sintering temperature of 0.7Ca2P2O7-0.3TiO2 can be effectively reduced from 1150 to 950oC. The dielectric constant of the low fired 0.7Ca2P2O7-0.3TiO2 ceramics was not significantly changed while the quality factor was affected by additives. The temperature coefficient of resonant frequency value was increased in negative value with the additive contents. V2O5 and CuO additives effectively improved the densification and dielectric properties of 0.7Ca2P2O7-0.3TiO2 ceramics. The correlation between the phase constituents and the dielectric properties was investigated with additive contents.

Effect of BaCu(B2O5) on the sintering temperature and microwave dielectric properties of Ba(Nd0.8Bi0.2)2Ti4O12 ceramics

2010 ◽  
Vol 25 (12) ◽  
pp. 2380-2383 ◽  
Author(s):  
Yi Zeng ◽  
Hong Wang ◽  
Huanfu Zhou
Keyword(s):  
Dielectric Properties ◽  
Low Temperature ◽  
Resonant Frequency ◽  
Temperature Coefficient ◽  
Quality Factor ◽  
Sintering Temperature ◽  
Microwave Dielectric Properties ◽  
Potential Candidate ◽  
Microwave Dielectric ◽  
Quality Factor Q

The effect of BaCu(B2O5) (BCB) on the sintering temperature and microwave dielectric properties of Ba(Nd0.8Bi0.2)2Ti4O12 (BNBT) ceramics was investigated. The sintering temperature of the BNBT ceramics was significantly reduced from 1300 to 900 °C. Due to adding BCB into Ba(Nd1–xBix)2Ti4O12, the temperature coefficient of resonant frequency can be adjusted to zero with BCB content increasing. Good microwave dielectric properties of quality factor (Q×f) = 2600 GHz, εr = 75, and τf = 5 ppm/°C were obtained for BNBT with 7 wt% BCB sintered at 925 °C for 2 h, which make it a potential candidate for low temperature cofired ceramics applications.

Low Temperature Sintering of Ca0.6La0.8/3TiO3-Li0.5Nd0.5TiO3 Ceramics with ZnO-B2O3-SiO2 Glass Addition

2011 ◽  
Vol 335-336 ◽  
pp. 956-959 ◽  
Author(s):  
Yong Jun Gu ◽  
Jin Liang Huang ◽  
Wei Hu ◽  
Qian Li ◽  
Li Hua Li ◽  
...  
Keyword(s):  
Dielectric Properties ◽  
Low Temperature ◽  
Sintering Temperature ◽  
Microwave Dielectric Properties ◽  
Low Temperature Sintering ◽  
Suitable Candidate ◽  
Glass Addition ◽  
Microwave Dielectric

The sintering behaviors and microwave dielectric properties of the Ca0.6La0.8/3TiO3-Li0.5Nd0.5TiO3 (abbreviated CLLNT) ceramics doped by small amounts of ZnO-B2O3-SiO2 glass were investigated in this paper. The adding of ZnO-B2O3-SiO2 glass improved the densifications of the CLLNT ceramics and the sintering temperature of the CLLNT ceramic had been efficiently lowered to 1050°C. Especially, the 8wt% ZnO-B2O3-SiO2 glass doped CLLNT ceramic sintered at 1050°C for 3 h has optimum microwave dielectric properties of Kr=89, Q×f=1445GHz, and TCF=11.4 ppm/°C and it should be a suitable candidate for LTCC applications.

Effect of V2O5 Addition on the Microwave Dielectric Properties of Ba(Mg1/3Nb2/3)O3 Ceramics

2007 ◽  
Vol 336-338 ◽  
pp. 301-303 ◽  
Author(s):  
Liu Shan ◽  
Wei Pan
Keyword(s):  
Dielectric Properties ◽  
Resonance Frequency ◽  
Bulk Density ◽  
Temperature Coefficient ◽  
Sintering Temperature ◽  
Microwave Dielectric Properties ◽  
Second Phase ◽  
Q Value ◽  
Microwave Dielectric ◽  
Different Content

The effect of V2O5 as additives of different content on the densification, microstructure and dielectric properties of Ba(Mg1/3Nb2/3)O3 (BMN) was investigated. The sintering temperature of the V2O5-doped BMN samples were lowered down to 1250 oC with 0.5wt% V2O5 compared to pure BMN ceramics where the sintering temperature was 1500 oC at least. The εr and τf was not influenced much, while the Q value was affected by the sintering temperature and the V2O5 additives. The Q value decreased with decrease of the sintering temperature and the V2O5 addition increasing due to the bulk density and the second phase. Good microwave dielectric properties of Q·f=42100GHz, εr =31.7 and temperature coefficient of resonance frequency (τf) =22.7ppm/ oC were obtained with 0.25 wt% V2O5 sintered at 1350 oC for 4h.

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