Photoacoustic and X-ray photoelectron spectroscopic studies in reduced lead zirconate titanate ceramics

1988 ◽  
Vol 23 (7) ◽  
pp. 2631-2636 ◽  
Author(s):  
N. R. Rajopadhye ◽  
S. V. Bhoraskar ◽  
S. Badrinarayan ◽  
A. P. B. Sinha
2001 ◽  
Vol 84 (12) ◽  
pp. 2921-2929 ◽  
Author(s):  
Alexandre E. Glazounov ◽  
Hans Kungl ◽  
Jan-Thorsten Reszat ◽  
Michael J. Hoffmann ◽  
Arnd Kolleck ◽  
...  

2012 ◽  
Vol 41 (3) ◽  
pp. 156-163 ◽  
Author(s):  
Rafael Hernández García ◽  
Moni Behar ◽  
Johnny Ferraz Dias ◽  
Margarita Edelia Villanueva Tagle ◽  
María Dolores Durruthy Rodríguez ◽  
...  

1999 ◽  
Vol 107 (1249) ◽  
pp. 857-860 ◽  
Author(s):  
Osamu SUGIYAMA ◽  
Shozo SAITO ◽  
Kazuaki KATO ◽  
Shozo OSUMI ◽  
Shoji KANEKO

2009 ◽  
Vol 404 (20) ◽  
pp. 3709-3716 ◽  
Author(s):  
Rajiv Ranjan ◽  
Rajiv Kumar ◽  
Banarji Behera ◽  
R.N.P. Choudhary

2007 ◽  
Vol 280-283 ◽  
pp. 211-214 ◽  
Author(s):  
Hua Zhou ◽  
Qingchi Sun ◽  
Cuimin Lu

Praseodymium (Pr) modified lead zirconate titanate ceramics (Pb1-1.5xPrx (ZryTi1-y) O3 with x = 0.02, 0.04, 0.06, 0.08 and y = 0.51, 0.52, 0.54, 0.56, 0.58, 0.60) were prepared by the high temperature solid-state reaction method. X-ray diffraction (XRD) results show that the morphotropic phase boundary (MPB) of Pb0.955Pr0.03(ZryTi1-y)O3 (PPZT1) is located in the area where the molar fraction of Zr is near 55%, when the molar fraction of Zr is 54% and the sintering temperature is 1240°C with 1h curing time, the superior piezoelectric properties of compositions of PPZT1 system were optimized, a set of d33 = 420 pC/N; eT 33/e0 = 2,000; Tc = 314°C; Qm = 76; tand = 2% and kp = 0.53. On the other hand, Pb1-1.5xPrx(Zr0.54Ti0.46)O3 (PPZT2) is far from MPB and their compositions are all in tetragonal phase.


2004 ◽  
Vol 96 (8) ◽  
pp. 4245-4252 ◽  
Author(s):  
D. A. Hall ◽  
A. Steuwer ◽  
B. Cherdhirunkorn ◽  
T. Mori ◽  
P. J. Withers

Author(s):  
M.L.A. Dass ◽  
T.A. Bielicki ◽  
G. Thomas ◽  
T. Yamamoto ◽  
K. Okazaki

Lead zirconate titanate, Pb(Zr,Ti)O3 (PZT), ceramics are ferroelectrics formed as solid solutions between ferroelectric PbTiO3 and ant iferroelectric PbZrO3. The subsolidus phase diagram is shown in figure 1. PZT transforms between the Ti-rich tetragonal (T) and the Zr-rich rhombohedral (R) phases at a composition which is nearly independent of temperature. This phenomenon is called morphotropism, and the boundary between the two phases is known as the morphotropic phase boundary (MPB). The excellent piezoelectric and dielectric properties occurring at this composition are believed to.be due to the coexistence of T and R phases, which results in easy poling (i.e. orientation of individual grain polarizations in the direction of an applied electric field). However, there is little direct proof of the coexistence of the two phases at the MPB, possibly because of the difficulty of distinguishing between them. In this investigation a CBD method was found which would successfully differentiate between the phases, and this was applied to confirm the coexistence of the two phases.


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