Low loss (Ba1−xSrx)(Co1/3Nb2/3)O3 solid solution: phase evolution, microstructure and microwave dielectric properties

2015 ◽  
Vol 26 (6) ◽  
pp. 4273-4279 ◽  
Author(s):  
Zhefei Wang ◽  
Baoyu Huang ◽  
Lixi Wang ◽  
Zhenxiao Fu ◽  
Qitu Zhang
Keyword(s):  
Solid Solution ◽  
Dielectric Properties ◽  
Microwave Dielectric Properties ◽  
Phase Evolution ◽  
Solution Phase ◽  
Solid Solution Phase ◽  
Low Loss ◽  
Microwave Dielectric

Low Loss Dielectrics in Ba[(Mg1/3Ta2/3)1−xTix]O3 and Ba[(Mg1−xZnx)1/3Ta2/3]O3 Systems

2005 ◽  
Vol 20 (11) ◽  
pp. 2919-2926 ◽  
Author(s):  
Kuzhichalil Peethambaran Surendran ◽  
Mailadil Thomas Sebastian
Keyword(s):  
Solid Solution ◽  
Dielectric Constant ◽  
Dielectric Properties ◽  
Quality Factor ◽  
Mole Fraction ◽  
Microwave Dielectric Properties ◽  
Quality Factors ◽  
Low Loss ◽  
Microwave Dielectric ◽  
Ti Substitution

The microwave dielectric properties of ceramics based on Ba[(Mg1/3Ta2/3)1−xTix]O3 (BMT-BT) and Ba[(Mg1−xZnx)1/3Ta2/3]O3 (BMT-BZT) were investigated as a function of composition x. In BMT-BT solid solution, the dielectric properties deteriorated with increasing concentration of Ti substitution at the B-site of BMT. A correlation was established between the quality factors of the solid solution phases and their tolerance factor. In BMT-BZT solid solution, where both the end compounds are ordered perovskites, the unit cell expands with increasing mole fraction of the Zn in Mg site of BMT while the dielectric constant increases monotonously from 24.8 (for BMT) to 29.7 (BZT). In BMT-BZT solid solution, the quality factor reaches a maximum (Qu·f = 109,900 GHz) for 60 mol/ of BZT.

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