Thermophysical properties of PLZT ferroelectric ceramics with a nanopolar structure

Kallaev, S. N.; Omarov, Z. M.; Mitarov, R. G.; Bilalov, A. R.; Борманис, К.; Sadykov, S. A.

doi:10.1134/s1063776110090116

Cited by 13 publications

(4 citation statements)

References 14 publications

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“…Another ferroelectric material investigated is a quaternary system based on lead lanthanum zirconate titanate known as PLZT [3,4], where the effects of sintering temperature on the electrical properties are reported elsewhere, considering the manufacturing process by mechanical alloying technique. Other research approaches of interest are the thermophysical, electrical fatigue, and photovoltaic properties [3,5,6]. In the continuous search for new ferroelectric materials, efforts have been made in research which focuses on lead-free systems as suitable materials for biomedical applications, as in the case of barium titanate (BaTiO 3 ) and its derivatives (Na,Bi)Ti-BaTiO 3 -(K,Bi)TiO 3 (BNBK) and (K,Na)NbO 3 (KNN) [7,8].…”

Section: Introductionmentioning

confidence: 99%

A PLZT Novel Sensor with Pt Implanted for Biomedical Application: Cardiac Micropulses Detection on Human Skin

González-Morán

Miranda-Hernández

Flores-Cuautle

et al. 2017

Advances in Materials Science and Engineering

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Advances in sensors for biomedical applications have been a great motivation. In this research, a PLZT (lead lanthanum zirconate titanate) novel sensor with platinum wire implanted in its longitudinal section was developed through of the synthesis process based on powder technology. The raw materials as lead (PbO), lanthanum (La2O3), zircon (ZrO2), and titanium (TiO2) were used in the formation of the chemical composition (62.8% PbO, 4.5% La2O3, 24.2% ZrO2, and 8.5% TiO2). Then, these powders were submitted to mix-mechanical milling at high energy; cylindrical samples with the implant of the platinum wire were obtained with the load application. Finally, the compacted samples were sintered at 1200°C for 2 hours, then followed by a polarization potential of 1500 V/mm at 60°C to obtain a novel sensor. The density and porosity were evaluated using the Archimedes’ principle, while the mechanical properties such as fracture toughness value and Young’s modulus were determined by indentation and ultrasonic methods, respectively. A microscopic examination was also carried out to investigate the structural properties of the material. The PLZT novel sensor is electronically arranged for monitoring the cardiac pulses through a data acquisition system. The results obtained in this research are analyzed and discussed.

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Section: Introductionmentioning

confidence: 99%

A PLZT Novel Sensor with Pt Implanted for Biomedical Application: Cardiac Micropulses Detection on Human Skin

González-Morán

Miranda-Hernández

Flores-Cuautle

et al. 2017

Advances in Materials Science and Engineering

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“…An extensive literature survey of pure and modified PZT ceramics [24][25][26][27][28][29][30][31] reveals that most of the reported works in this field are confined to La-modified PZT. It has shown tremendous applications in the solid-state electronic devices.…”

Section: Introductionmentioning

confidence: 99%

Impedance and electric modulus analysis of Sm-modified Pb(Zr0.55Ti0.45)1−x/4O3 ceramics

Ranjan

Kumar

et al. 2011

Journal of Alloys and Compounds

235

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“…It should be noted that the structural changes due to x lead to high permittivity and heat capacity in a wide temperature range. High values for relaxing ceramics occur as a result of Maxwell-Wagner polarization [14], and the increased heat capacity is attributed to the appearance of a nanopolar structure in ferroelectrics with smeared phase transitions as shown in [15].…”

Section: Research Resultsmentioning

confidence: 99%

Thermodynamic Properties and Phase Transitions of Multiferroics (1-x)BiFeO-=SUB=-3-x-=/SUB=-PbFe-=SUB=-0.5-=/SUB=-Nb-=SUB=-0.5-=/SUB=-O-=SUB=-3-=/SUB=-

Kallaev

Omarov

Bilalov

et al. 2022

Physics of the Solid State

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Studies of the heat capacity and dielectric properties of (1-x)BiFeO3-xPbFe0.5Nb0.5O3 ceramic multiferroics in the temperature range of 300-800 K were carried out. Based on studies of the temperature and concentration dependences of the heat capacity and dielectric constant, the phase transition temperatures of the (1-x)BiFeO3 system were determined. (1-x)PbFe0.5Nb0.5O3 with various x concentrations. It is shown that with an increase in the PbFe0.5Nb0.5O3 component, the temperatures of the ferroelectric and antiferromagnetic transitions in BiFeO3 shift to low temperatures. Taking into account structural studies, a "temperature-concentration" phase diagram has been constructed. Keywords: heat capacity, dielectric properties, ferromagnet, antiferromagnet, multiferroics.

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Thermophysical properties of PLZT ferroelectric ceramics with a nanopolar structure

Cited by 13 publications

References 14 publications

A PLZT Novel Sensor with Pt Implanted for Biomedical Application: Cardiac Micropulses Detection on Human Skin

A PLZT Novel Sensor with Pt Implanted for Biomedical Application: Cardiac Micropulses Detection on Human Skin

Impedance and electric modulus analysis of Sm-modified Pb(Zr0.55Ti0.45)1−x/4O3 ceramics

Thermodynamic Properties and Phase Transitions of Multiferroics (1-x)BiFeO-=SUB=-3-x-=/SUB=-PbFe-=SUB=-0.5-=/SUB=-Nb-=SUB=-0.5-=/SUB=-O-=SUB=-3-=/SUB=-

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