Dielectric Studies of Ba Substitution in Lead Zinc Niobate-Lead Zirconium Titanate Ceramics by Precipitation Method

2010 ◽  
Vol 116 (1) ◽  
pp. 119-127 ◽  
Author(s):  
Shekhar ◽  
Kumar Brajesh ◽  
A. K. Himanshu ◽  
S. K. Bandyopadhayay ◽  
T. P. Sinha
Keyword(s):  
Precipitation Method ◽  
Zirconium Titanate ◽  
Lead Zirconium Titanate ◽  
Dielectric Studies ◽  
Lead Zinc Niobate ◽  
Lead Zinc ◽  
Titanate Ceramics ◽  
Ba Substitution

Piezoresponse Measurement and Imaging of Electromechanical PZT and PZN-BT thin Films

2000 ◽  
Vol 655 ◽  
Author(s):  
C. Morros ◽  
M.H. Corbett ◽  
G. Catalan ◽  
J.M. Gregg ◽  
R.M. Bowman
Keyword(s):  
Thin Films ◽  
Pulsed Laser ◽  
Dielectric Constants ◽  
Laser Deposition ◽  
Lead Zirconium Titanate ◽  
Atomic Force ◽  
Pzt Films ◽  
Lead Zinc Niobate ◽  
Lead Zinc ◽  
Individual Grains

AbstractPulsed laser deposition (PLD) was used to growth thin films of lead zirconium titanate (PZT) and lead zinc niobate-barium titanate (PZN-BT). The PZT films were prepared from commercial PZT-5H ceramic target and the PZN-BT made from target made using a modified Columbite method. The PZT films had dielectric constants of 300 and loss of 0.03 at 10kHz, whilst for the PZN-BT films they were 350 and 0.03 respectively at 300K. Hysteresis measurements confirmed their switching propertiesA piezoresponse microscope based on a modified atomic force microscope was developed to determine electromechanical response at a sub-micrometer resolution. The PZT films yielded d33 ∼100pm/V. Mapping measurements on the PZT demonstrated local switching of individual grains. First measurements of piezoresponse of PZN-BT yielded values in the region 150-200 pm/V.

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