Effect of defect dipoles on the dielectric and electrical properties of Mn:K2Ti6O13 lead-free ceramics: EPR spectroscopy-cum-dielectric-spectroscopy

2011 ◽  
Vol 23 (3) ◽  
pp. 718-727 ◽  
Author(s):  
Satyendra V. Vikram ◽  
Deepam Maurya ◽  
D. M. Phase ◽  
Vishal S. Chandel
Keyword(s):  
Electrical Properties ◽  
Dielectric Spectroscopy ◽  
Epr Spectroscopy ◽  
Lead Free ◽  
Lead Free Ceramics

(1 − x)(K0.48Na0.52)(Nb0.95−y−zTazSby)O3–xBi0.5(Na0.82K0.18)0.5ZrO3 lead-free ceramics: composition dependence of the phase boundaries and electrical properties

2015 ◽  
Vol 44 (10) ◽  
pp. 4440-4448 ◽  
Author(s):  
Xiang Lv ◽  
Jiagang Wu ◽  
Dingquan Xiao ◽  
Hong Tao ◽  
Yuan Yuan ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Composition Dependence ◽  
Lead Free ◽  
Phase Boundaries ◽  
Phase Structures ◽  
Lead Free Ceramics

In this work, the KNNST-BNKZ-xyz ceramics were obtained, and the composition dependence of their phase structures and electrical properties was discussed.

Microstructures, phase evolution and electrical properties of (1-x)K0.40Na0.60Nb0.96Sb0.04O3-xBi0.5K0.5HfO3 lead-free ceramics

2019 ◽  
Vol 45 (5) ◽  
pp. 6328-6334 ◽  
Author(s):  
Yunyi Liu ◽  
Yunhe Yi ◽  
Yungang Yu ◽  
Yongqi Pan ◽  
Caiwang He ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Phase Evolution ◽  
Lead Free ◽  
Lead Free Ceramics

Effect of Bi2O3 Addition on the Microstructure and Electrical Properties of Lead-Free (Na0.5K0.5)NbO3-Bi0.5(Na0.93K0.07)0.5TiO3 Ceramics

2013 ◽  
Vol 479-480 ◽  
pp. 3-7
Author(s):  
Chun Huy Wang
Keyword(s):  
Solid Solution ◽  
Electrical Properties ◽  
Electromechanical Coupling ◽  
Piezoelectric Properties ◽  
Lead Free ◽  
Coupling Coefficients ◽  
Electromechanical Transducer ◽  
Lead Free Ceramics ◽  
Thickness Mode ◽  
Planar Mode

In the present study, various quantities of Bi2O3were added into 0.98(Na0.5K0.5)NbO3-0.02Bi(Na0.93K0.07)TiO3(0.98NKN-0.02BNKT) ceramics. It was found that 0.98NKN-0.02BNKTwith the addition of 0~0.5 wt.% Bi2O3exhibit relatively good piezoelectric properties. For 0.98NKN-0.02BNKT ceramics, the electromechanical coupling coefficients of the planar modekpand the thickness modektreach 0.40 and 0.47,respectively. For 0.98NKN-0.02BNKT ceramics with the addition of 0.3 wt.% Bi2O3, the electromechanical coupling coefficients ofthe planar modekpand the thickness modektreach 0.50 and 0.53, respectively. It is obvious that 0.98NKN-0.02BNKT solid solution ceramics by adding low quantities of Bi2O3is one of the promising lead-free ceramics for electromechanical transducer applications.

Electrical properties and relaxor phase evolution of Nb-Modified Bi0.5Na0.5TiO3-Bi0.5K0.5TiO3-SrTiO3 lead-free ceramics

2019 ◽  
Vol 39 (7) ◽  
pp. 2310-2317 ◽  
Author(s):  
Xuefan Zhou ◽  
Zhongna Yan ◽  
He Qi ◽  
Lu Wang ◽  
Siyu Wang ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Phase Evolution ◽  
Lead Free ◽  
Lead Free Ceramics
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