Fabrication of PZT Ceramics for Focused Ultrasonic Equipment

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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Standard means for the reporting of the acoustic output of medical diagnostic ultrasonic equipment

10.3403/30153481 ◽

2007 ◽

Keyword(s):

Standard Means ◽

Ultrasonic Equipment ◽

Medical Diagnostic ◽

Acoustic Output

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The Effect of Sintering Processes on the Properties of Mn-F Doped PZT Ceramics

Integrated Ferroelectrics ◽

10.1080/10584580490460394 ◽

2004 ◽

Vol 62 (1) ◽

pp. 61-67 ◽

Cited By ~ 4

Author(s):

B. CHERDHIRUNKORN ◽

D. A. HALL

Keyword(s):

Pzt Ceramics ◽

Sintering Processes

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Porous PZT Ceramics with Aligned Pore Channels for Energy Harvesting Applications

Journal of the American Ceramic Society ◽

10.1111/jace.13797 ◽

2015 ◽

Vol 98 (10) ◽

pp. 2980-2983 ◽

Cited By ~ 44

Author(s):

Yan Zhang ◽

Yinxiang Bao ◽

Dou Zhang ◽

Chris R. Bowen

Keyword(s):

Energy Harvesting ◽

Pzt Ceramics ◽

Porous Pzt

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The effect of isostructural seeding on the microstructure and piezoelectric properties of PZT ceramics

Ceramics International ◽

10.1016/s0272-8842(98)00029-7 ◽

1999 ◽

Vol 25 (3) ◽

pp. 239-244 ◽

Cited By ~ 11

Author(s):

Maria A Zaghete ◽

José A Varela ◽

Mario Cilense ◽

Carlos O Paiva-Santos ◽

Wanda C Las ◽

...

Keyword(s):

Piezoelectric Properties ◽

Pzt Ceramics

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Hard/soft effects of multivalence co-dopants in correlation with their location in PZT ceramics

Ceramics International ◽

10.1016/j.ceramint.2021.08.243 ◽

2021 ◽

Author(s):

L. Amarande ◽

M.C. Cioangher ◽

V. Toma ◽

C.F. Miclea ◽

M. Stefan ◽

...

Keyword(s):

Pzt Ceramics

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Processing of Pb(Zr0.52Ti0.48)O3 (PZT) ceramics from microwave and conventional hydrothermal powders

Materials Research Bulletin ◽

10.1016/s0025-5408(99)00143-9 ◽

1999 ◽

Vol 34 (9) ◽

pp. 1411-1419 ◽

Cited By ~ 25

Author(s):

Isaac Robin Abothu ◽

Shi-Fang Liu ◽

Sridhar Komarneni ◽

Qing Hua Li

Keyword(s):

Pzt Ceramics

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Thermoacoustic sensor for ultrasound power measurements and ultrasonic equipment calibration

Ultrasound in Medicine & Biology ◽

10.1016/0301-5629(94)90005-1 ◽

1994 ◽

Vol 20 (4) ◽

pp. 367-373 ◽

Cited By ~ 19

Author(s):

B. Fay ◽

M. Rinker ◽

P.A. Lewin

Keyword(s):

Ultrasonic Equipment ◽

Power Measurements ◽

Ultrasound Power

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INVESTIGATIONS ON Sm- AND Nb-SUBSTITUTED PZT CERAMICS

Modern Physics Letters B ◽

10.1142/s0217984906012134 ◽

2006 ◽

Vol 20 (29) ◽

pp. 1879-1882 ◽

Cited By ~ 3

Author(s):

CHANDRA PRAKASH ◽

J. K. JUNEJA

Keyword(s):

Dielectric Constant ◽

Single Phase ◽

Xrd Analysis ◽

Chemical Formula ◽

X Ray Diffraction ◽

Pzt Ceramics ◽

Ceramic Method ◽

X Ray ◽

Niobium Doping ◽

Constant Versus

In the present paper, we report the effect of Samarium substitution and Niobium doping on the properties of a PZT(52:48). The properties studied are: structural, dielectric and ferroelectric. The samples with chemical formula Pb 0.99 Sm 0.01 Zr 0.52 Ti 0.48 O 3 were prepared by solid-state dry ceramic method. Small amount (0.5 wt%) of Nb 2 O 5 was also added. X-ray diffraction (XRD) analysis showed formation of a single phase with tetragonal structure. Dielectric properties were studied as a function of temperature and frequency. Transition temperature, Tc, was determined from dielectric constant versus temperature plot. The material shows well-defined ferroelectric (PE) hysteresis loop.

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