Oriented surface self-segregation in lead titanate single crystals

2010 ◽  
Vol 4 (5) ◽  
pp. 769-772 ◽  
Author(s):  
Yu. Ya. Tomashpolskii ◽  
N. V. Sadovskaya
Keyword(s):  
Single Crystals ◽  
Lead Titanate ◽  
Oriented Surface

Structural Instability during Cubic-Tetragonal Transformation in Lead Titanate Single Crystals

2004 ◽  
Vol 82 (5) ◽  
pp. 1294-1298
Author(s):  
Chen-Chia Chou ◽  
Chun-Shou Hou
Keyword(s):  
Single Crystals ◽  
Lead Titanate ◽  
Structural Instability

Float-Zone Growth and Properties of Ferroelectric Lead Titanate

2004 ◽  
Vol 19 (3) ◽  
pp. 827-833 ◽  
Author(s):  
N. Maffei ◽  
G.A. Rossetti
Keyword(s):  
Single Crystals ◽  
Lead Titanate ◽  
Chemical Constituents ◽  
Ultrasound Transducers ◽  
X Ray Diffraction ◽  
Float Zone ◽  
Molten Liquid ◽  
The Stability ◽  
Permittivity Measurements ◽  
First Time

Lead titanate (PbTiO3) is a ferroelectric/piezoelectric material widely used in medical ultrasound transducers and infrared detectors. It is also important as an end member of morphotropic solid-solution systems such as Pb(Zn1/3Nb2/3)–PbTiO3 (PZN–PT) and Pb(Mg1/3Nb2/3)–PT (PMN–PT) that exhibit exceptional electromechanical properties as oriented single crystals. The float-zone technique has been used to grow pure crystals of lead titanate. To the best of the authors’ knowledge, this is the first time that the growth of this compound by the float-zone technique has been reported. The principal advantage of the float-zone technique is that no container is required so that a uniform distribution of chemical constituents can be obtained while eliminating problems of heterogeneous nucleation and metal contamination at the container wall. Although large single crystals were not obtained in the current study primarily due to instabilities of the molten liquid zone, the combined results of characterization by electron probe microanalysis, x-ray diffraction, specific heat, and dielectric permittivity measurements show that the float-zone crystal growth technique can produce lead titanate crystals of high chemical and phase purity. However, the results show that to obtain large single crystals, the stability of the molten zone at low cooling rates must be improved.

scholarly journals Domain wall contributions to piezoelectricity in relaxor-lead titanate single crystals

2020 ◽  
Vol 195 ◽  
pp. 292-303 ◽  
Author(s):  
Andrew J. Bell ◽  
Philippa M. Shepley ◽  
Yang Li
Keyword(s):  
Domain Wall ◽  
Single Crystals ◽  
Lead Titanate

A Study Of Domain Boundary Structures In Lead Titanate Single Crystals

1991 ◽  
Vol 238 ◽  
Author(s):  
C. C. Chou ◽  
J. Li ◽  
C. M. Wayman
Keyword(s):  
Electron Microscopy ◽  
Single Crystals ◽  
Lead Titanate ◽  
Mixed Type ◽  
Domain Boundary ◽  
Dynamical Theory ◽  
Fringe Contrast ◽  
Transmission Electron ◽  
Domain Boundaries ◽  
Contrast Analysis

ABSTRACTDomain boundary structures of flux-grown poly-domain lead titanate single crystals have been studied using transmission electron microscopy. 90° and 180° domain boundaries were seen in the crystals and were systematically analyzed under various diffraction conditions. Although 90° domain boundaries are supposely δ-type boundaries in BaTiO3, our results show that displacement plays an important role at boundaries and the extreme fringe contrast (EFC) behavior of 90° boundaries is of the mixed type. In the present work, an analysis based upon the two beam dynamical theory was conducted and a rule similar to stacking-fault contrast analysis was established to predict the geometric configuration of a 180° domain boundary using EFC behavior. Examples are given and verified by tilting experiments and electron diffraction. The results are consistent and offer a convenient way to distinguish between 90° and 180° boundaries.

Growth and electrical characterization of the lead magnesium niobate-lead titanate (PMN-PT) single crystals for piezoelectric devices

2007 ◽  
Vol 19 (11) ◽  
pp. 1058-1063 ◽  
Author(s):  
F. Kochary ◽  
M. D. Aggarwal ◽  
A. K. Batra ◽  
R. Hawrami ◽  
D. Lianos ◽  
...  
Keyword(s):  
Single Crystals ◽  
Lead Titanate ◽  
Electrical Characterization ◽  
Lead Magnesium Niobate ◽  
Magnesium Niobate ◽  
Lead Magnesium ◽  
Piezoelectric Devices

Crystal Growth and Electrical Properties of Lead Scandium Niobate-Lead Titanate Binary Single Crystals

1997 ◽  
Vol 36 (Part 1, No. 9B) ◽  
pp. 6039-6042 ◽  
Author(s):  
Yohachi Yamashita ◽  
Kouichi Harada
Keyword(s):  
Crystal Growth ◽  
Electrical Properties ◽  
Single Crystals ◽  
Lead Titanate

Oriented surface autosegregation in the lead germanate single crystals

2010 ◽  
Vol 4 (5) ◽  
pp. 811-816 ◽  
Author(s):  
Yu. Ya. Tomashpolsky ◽  
N. V. Sadovskaya
Keyword(s):  
Single Crystals ◽  
Lead Germanate ◽  
Oriented Surface

Specific problems of thermoelectric force investigations in lead titanate, potassium niobate, and sodium niobate single crystals and in lead zirconate ceramics

1978 ◽  
Vol 18 (1) ◽  
pp. 127-129 ◽  
Author(s):  
J. Handerek ◽  
Z. Wrobel ◽  
K. Wojcik ◽  
Z. Ujma
Keyword(s):  
Single Crystals ◽  
Lead Titanate ◽  
Lead Zirconate ◽  
Potassium Niobate ◽  
Sodium Niobate
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