Electrical characterizations of PZT ceramics in large frequency and temperature ranges

2008 ◽  
Vol 28 (10) ◽  
pp. 2071-2074 ◽  
Author(s):  
D. Fasquelle ◽  
J.C. Carru
Keyword(s):  
Pzt Ceramics ◽  
Temperature Ranges ◽  
Electrical Characterizations ◽  
Large Frequency

Ferroelectric Properties and Internal Friction in Doped PZT Ceramics

2015 ◽  
Vol 644 ◽  
pp. 171-174
Author(s):  
Dariusz Bochenek ◽  
Przemysław Niemiec ◽  
Radosław Zachariasz ◽  
Ryszard Skulski
Keyword(s):  
High Temperature ◽  
Internal Friction ◽  
Ferroelectric Properties ◽  
Low Frequency ◽  
Electric Permittivity ◽  
Pressing Method ◽  
Pzt Ceramics ◽  
Low Dielectric ◽  
Temperature Ranges ◽  
Similar Temperature

Multicomponent PZT-type solid solution with composition: Pb0.975Ba0.01Ca0.01Sr0.005 (Zr0.52Ti0.48)O3+1.4wt.%Bi2O3+0.3wt.%GeO obtained by hot uniaxial pressing method is described in this paper. There are presented the results of studies of structural, dielectric and internal friction of obtained multicomponent PZT-type ceramics. It has been stated that the dielectric anomalies and internal friction anomalies are observed in similar temperature ranges. Obtained PZT-type ceramics have high value of the dielectric permittivity and low dielectric losses. The high temperature of phase transition and high value of electric permittivity allow considering this material as a base for low frequency and high temperature electromechanical transducers.

Hydrothermal Synthesis of PbTiO 3 Ferroelectric Films: Characterizations with Large Frequency and Temperature Ranges and Sensor Application

2003 ◽  
Vol 288 (1) ◽  
pp. 39-48 ◽  
Author(s):  
Didier Fasquelle ◽  
Jean-Claude Carru ◽  
Sébastien Euphrasie ◽  
Philippe Pernod ◽  
Sylvie Daviero-Minaud
Keyword(s):  
Hydrothermal Synthesis ◽  
Ferroelectric Films ◽  
Sensor Application ◽  
Temperature Ranges ◽  
Large Frequency

Convergent-bceam diffraction studies on lead zirconate titanate Ceramics

1986 ◽  
Vol 44 ◽  
pp. 482-483
Author(s):  
M.L.A. Dass ◽  
T.A. Bielicki ◽  
G. Thomas ◽  
T. Yamamoto ◽  
K. Okazaki
Keyword(s):  
Lead Zirconate Titanate ◽  
Direct Proof ◽  
Lead Zirconate ◽  
Subsolidus Phase ◽  
Pzt Ceramics ◽  
Subsolidus Phase Diagram ◽  
Zirconate Titanate ◽  
Two Phases ◽  
Cbd Method ◽  
Titanate Ceramics

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.

Optical and Electrical Properties of Organic Conducting Polymers

2014 ◽  
Vol 8 (1) ◽  
pp. 1457-1463
Author(s):  
Salah Abdulla Hasoon
Keyword(s):  
Electrical Properties ◽  
Conjugated Polymer ◽  
Polymeric Materials ◽  
Quantum Mechanical ◽  
Optical And Electrical Properties ◽  
Electrically Conducting ◽  
Temperature Ranges ◽  
Lithium Tetrafluoroborate ◽  
Absorbance Peak ◽  
Polymerization Method

Novel electrically conducting polymeric materials are prepared in this work. Polythiophene (PT) and poly (3-Methelthiophene) (P3MT) films were prepared by electro-polymerization method using cyclic voltammetry in acetonitrile as a solvent and lithium tetrafluoroborate as the electrolyte on a gold electrode. Electrical properties of P3MT have been examined in different environments using UV-Vis absorption spectroscopy and quantum mechanical ab initio calculations, The observed absorption peaks at 314 and 415 nm, were attributed to the n-π* and π-π* transitions, respectively in the conjugated polymer chain, in contrast, the observed absorbance peak at 649 nm, is responsible for electric conduction. The temperature dependence of the conductivity can be fitted to the Arrhenius and the VTF equations in different temperature ranges.

CARPENTER LOW EXPANSION 39

Alloy Digest ◽  
2004 ◽  
Vol 53 (10) ◽  
Keyword(s):  
Thermal Expansion ◽  
Physical Properties ◽  
Tensile Properties ◽  
Iron Alloy ◽  
Nickel Iron ◽  
Temperature Ranges ◽  
Technology Corporation ◽  
Carpenter Technology Corporation ◽  
Nickel Iron Alloy ◽  
Low Rate

Abstract Carpenter Low Expansion 39 alloy is a 39% nickel iron alloy with a low rate of thermal expansion useful to temperature ranges up to 316 deg C (600 deg F). This datasheet provides information on composition, physical properties, and tensile properties. It also includes information on joining. Filing Code: FE-132. Producer or source: Carpenter Technology Corporation.

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