scholarly journals Structure, dielectric and piezoelectric properties of donor doped PZT ceramics across the phase diagram

2016 ◽  
Vol 504 (1) ◽  
pp. 160-171 ◽  
Author(s):  
A. S. Karapuzha ◽  
N. K. James ◽  
H. Khanbareh ◽  
S. van der Zwaag ◽  
W. A. Groen
2016 ◽  
Vol 491 (1) ◽  
pp. 15-26 ◽  
Author(s):  
H. Zhang ◽  
J. Shen ◽  
J. Tian ◽  
J. Zhou ◽  
W. Chen

2007 ◽  
Vol 280-283 ◽  
pp. 227-230 ◽  
Author(s):  
X. Zeng ◽  
Ai Li Ding ◽  
X.S. Zheng ◽  
Yong Zhang ◽  
Ping Sun Qiu

La-modified PZN-PZT compositions with representative formula Pb1-0.7xLa0.7x(Zn1/3Nb2/3)0.3- (Zr0.55Ti0.45)0.7(1-x/4)O3 were prepared by the columbite precursor method. La content, x, was varied from 0 to 8mol%. Effects of La doping on microstructure, dielectric and piezoelectric properties were investigated. The results showed that in present system La doping promotes the formation of pyrochlore phase and the phase shifted from rhombohedral to tetragonal structure with increasing La content. It was also found that La doping makes dielectric permittivity maximum decrease and the degree of diffuse phase transition enhance. Appropriate amount of La doping could improve the piezoelectric properties.


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