Effect of lanthanum on the piezoelectric properties of lead zirconate titanate–lead zinc niobate ceramics

2003 ◽  
Vol 18 (8) ◽  
pp. 1765-1770 ◽  
Author(s):  
Seung-Ho Lee ◽  
Chang-Bun Yoon ◽  
Seung-Beom Seo ◽  
Hyoun-Ee Kim
Keyword(s):  
Grain Size ◽  
Phase Boundary ◽  
Lead Zirconate Titanate ◽  
Piezoelectric Properties ◽  
Lead Zirconate ◽  
Zirconate Titanate ◽  
Lead Zinc Niobate ◽  
Lead Zinc ◽  
La Addition ◽  
Titanate Lead

The effect of lanthanum (La) addition on the piezoelectric properties of lead zirconate titanate–lead zinc niobate (PZT–PZN) was investigated. When small amounts of La were added to the 0.82PZT–0.18PZN, the phase of the specimen changed from rhombohedral to tetragonal and the grain size was steadily reduced. To retain the morphotropic phase boundary (MPB) condition of the specimens with La contents of up to 4 mol%, the Zr/Ti ratio in the PZT was increased to 54/46. When more than 5 mol% La was added, pyrochlore phases were formed, and the piezoelectric properties were reduced. Therefore, the optimum piezoelectric properties (d33 = 545 pC/N, kp = 0.64, and s33 = 0.39% at 2 kV/mm) were observed in the specimen having MPB composition and with an La content of 4 mol%.

Effect of lead zinc niobate addition on sintering behavior and piezoelectric properties of lead zirconate titanate ceramic

2004 ◽  
Vol 19 (9) ◽  
pp. 2553-2556 ◽  
Author(s):  
Sung-Mi Lee ◽  
Chang-Bun Yoon ◽  
Seung-Ho Lee ◽  
Hyoun-Ee Kim
Keyword(s):  
Lead Zirconate Titanate ◽  
Piezoelectric Properties ◽  
Lead Zirconate ◽  
Sintering Behavior ◽  
Pzt Ceramics ◽  
Zirconate Titanate ◽  
Lead Zinc Niobate ◽  
Lead Zinc ◽  
Lead Zirconate Titanate Ceramic ◽  
Titanate Ceramic

We investigated the effect of lead zinc niobate (PZN) on the sintering behavior and piezoelectric properties of lead zirconate titanate (PZT) ceramics. The addition of PZN improved the sinterability of PZT ceramic so remarkably, that at additions of more than 10%, the specimens were fully dense at a temperature as low as 900 °C. The phase of the PZT-PZN ceramics was affected by PZN content and the Zr/Ti ratio in the PZT. With increasing PZN content, a lower Zr/Ti ratio was required for the morphotropic phase boundary (MPB). Specimens with the MPB composition showed the highest piezoelectric properties; d33 = 500 pC/N, kp = 0.68, and S33 = 0.38% at 2 kV/mm.

Measurement of thermal strain and total polarization estimation of lead zirconate titanate–lead zinc niobate ceramics

2012 ◽  
Vol 47 (15) ◽  
pp. 5801-5805 ◽  
Author(s):  
Muangjai Unruan ◽  
Anurak Prasatkhetragarn ◽  
Yongyut Laosiritaworn ◽  
Supon Ananta ◽  
Athipong Ngamjarurojana ◽  
...  
Keyword(s):  
Lead Zirconate Titanate ◽  
Thermal Strain ◽  
Lead Zirconate ◽  
Zirconate Titanate ◽  
Lead Zinc Niobate ◽  
Lead Zinc ◽  
Total Polarization ◽  
Polarization Estimation ◽  
Titanate Lead

scholarly journals Perovskite phase formation and ferroelectric properties of the lead nickel niobate–lead zinc niobate–lead zirconate titanate ternary system

2003 ◽  
Vol 18 (12) ◽  
pp. 2882-2889 ◽  
Author(s):  
Naratip Vittayakorn ◽  
Gobwute Rujijanagul ◽  
Tawee Tunkasiri ◽  
Xiaoli Tan ◽  
David P. Cann
Keyword(s):  
Ternary System ◽  
Lead Zirconate Titanate ◽  
Remanent Polarization ◽  
Perovskite Phase ◽  
Ferroelectric Properties ◽  
Lead Zirconate ◽  
Zirconate Titanate ◽  
Lead Zinc Niobate ◽  
Lead Zinc ◽  
Lead Nickel

The ternary system of lead nickel niobate Pb(Ni1/3Nb2/3)O3 (PNN), lead zinc niobate Pb(Zn1/3Nb2/3)O3 (PZN), and lead zirconate titanate Pb(Zr1/2Ti1/2)O3 (PZT) was investigated to determine the influence of different solid state processing conditions on dielectric and ferroelectric properties. The ceramic materials were characterized using x-ray diffraction, dielectric measurements, and hysteresis measurements. To stabilize the perovskite phase, the columbite route was utilized with a double crucible technique and excess PbO. The phase-pure perovskite phase of PNN–PZN–PZT ceramics was obtained over a wide compositional range. It was observed that for the ternary system 0.5PNN–(0.5 - x)PZN–xPZT, the change in the transition temperature (Tm) is approximately linear with respect to the PZT content in the range x [H11505] 0 to 0.5. With an increase in x, Tm shifts up to high temperatures. Examination of the remanent polarization (Pr) revealed a significant increase with increasing x. In addition, the relative permittivity ([H9280]r) increased as a function of x. The highest permittivities ([H9280]r [H11505] 22,000) and the highest remanent polarization (Pr [H11505] 25 μC/cm2) were recorded for the binary composition 0.5Pb(Ni1/3Nb2/3)O3–0.5Pb(Zr1/2Ti1/2)O3.

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