X-ray diffraction measurement of residual stress in sol-gel grown lead zirconate titanate thick films on nickel-based super alloy substrate

Lead zirconate titanate nanopowder Pb(Zr0.53Ti0.47)O3 (PZT) was prepared by modified sol-gel method with 1-propanol as solvent and acetylacetone as stabilizer. The microstructure and particle size measurements at different heat treatment conditions were characterized by field emission scanning electron microscopy and x-ray diffraction analysis. It was found that the PZT nanoparticles calcinated at 600 °C showed mean diameter of 75-125 nm with high crystallinity of perovskite-type structure.

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Structural, Morphological and Thermal Decomposition Studies of Calcium and Hafnium Modified BaTiO3 Electro Ceramics

10.21203/rs.3.rs-243264/v1 ◽

2021 ◽

Author(s):

Jude Fernandez ◽

B Bindhu ◽

M. Prabu ◽

KY Sandhya

Keyword(s):

Lead Zirconate Titanate ◽

Sol Gel ◽

Lead Zirconate ◽

Ferroelectric Material ◽

Tetragonal Symmetry ◽

X Ray Diffraction ◽

X Ray ◽

Gel Combustion ◽

Combustion Technique ◽

P4mm Space Group

Abstract Calcium and hafnium co-doped barium titanate could be used as a replacement for lead zirconate titanate, which is a lead-based ferroelectric material. Solid state reaction accompanied by the usual sintering technique is the classical ceramic-processing method, which demands a lot of time and effort. The present work aims to make the process a lot easier and quicker by employing a modified sol-gel combustion technique to synthesize polycrystalline Ba0.85Ca0.15Ti(1-x)HfxO3 (x=0.00, 0.05, 0.10, 0.15) electro ceramics . The molar ration is fixed at 1:1 for metal and citric acid at pH ~ 1. It was found that Ba0.85Ca0.15Ti(1-x)HfxO3 (where x=0.00, 0.05, 0.10, 0.15) crystallizes completely at around 1000 °C which is much lower than traditional methods. The structure supposedly displays a tetragonal symmetry with the P4mm space group as confirmed through x-ray diffraction (XRD) and Raman spectroscopy.

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Phase evolution studies of sol–gel derived lead zirconate titanate (PZT) nanopowder using X-ray diffraction and X-ray photoelectron spectroscopy

Applied Physics A ◽

10.1007/s00339-011-6301-8 ◽

2011 ◽

Vol 104 (1) ◽

pp. 103-108 ◽

Cited By ~ 3

Author(s):

Anupama Sachdeva ◽

Mahesh Kumar ◽

Vandna Luthra ◽

R. P. Tandon

Keyword(s):

Lead Zirconate Titanate ◽

Photoelectron Spectroscopy ◽

Sol Gel ◽

Phase Evolution ◽

Lead Zirconate ◽

X Ray Diffraction ◽

X Ray ◽

Zirconate Titanate

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Ferroelectric and Dielectric Properties of ZnFe2O4-Pb(ZrTi)O3Multiferroic Nanocomposites

Journal of Nanomaterials ◽

10.1155/2015/526249 ◽

2015 ◽

Vol 2015 ◽

pp. 1-5 ◽

Cited By ~ 1

Author(s):

Shrabanee Sen ◽

Sk. Md. Mursalin ◽

M. Maharajan

Keyword(s):

Lead Zirconate Titanate ◽

Ferroelectric Properties ◽

Sol Gel ◽

Hysteresis Loops ◽

Lead Zirconate ◽

X Ray Diffraction ◽

Nanosized Powders ◽

X Ray ◽

Magnetoelectric Composites ◽

Gel Technique

Magnetoelectric composites of zinc ferrite and soft lead zirconate titanate (PZT) having formula 0.5 ZnFe2O4-0.5 PZT were synthesized by sol-gel technique. X-ray diffraction analysis was carried out to confirm the coexistence of individual phase. TEM micrographs were taken to confirm the formation of nanosized powders and SEM micrographs were taken to study the morphology of the sintered pellets. Dielectric and P-E hysteresis loops were recorded, respectively, to confirm the ferroelectric properties of the composites.

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Role of Pb excess in the crystallization of lead zirconate titanate films derived via sol-gel processing

Journal of Materials Research ◽

10.1557/jmr.2003.0193 ◽

2003 ◽

Vol 18 (6) ◽

pp. 1405-1411 ◽

Cited By ~ 3

Author(s):

Randolph N. Jacobs ◽

L. Salamanca-Riba

Keyword(s):

Lead Zirconate Titanate ◽

Sol Gel ◽

Chemical Vapor ◽

Lead Zirconate ◽

X Ray Diffraction ◽

X Ray ◽

Transmission Electron ◽

Annealing Step ◽

Gel Processing

Sol-gel spin coating of lead-titanate films differs from most processing routes, such as metalorganic chemical vapor deposition and pulsed laser deposition, in that crystallization cannot occur without a postdeposition annealing step. This work focuses on the annealing of sol-gel-derived PbZrTiO3 films on LaAlO3 substrates in attempts to identify the precise conditions necessary to grow films of quality similar to that obtained through other techniques. In particular, the effects of Pb excess (in precursor solutions), annealing times, and temperature were investigated through transmission electron microscopy and four-circle x-ray diffraction. The significance of this work is in the direct observation of the correlation between Pb excess and film crystallization. It is shown that the effects of Pb excess on the completeness of film crystallization become more dramatic at lower annealing temperatures, even while epitaxial quality is maintained.

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Partially Aligned Piezoelectric Nanofibers by Sol-Gel Electrospining Process

Design, Synthesis, and Applications ◽

10.1115/nano2005-87082 ◽

2005 ◽

Author(s):

Yong Shi ◽

Shiyou Xu ◽

Sang-Gook Kim

Keyword(s):

Lead Zirconate Titanate ◽

Perovskite Phase ◽

Sol Gel ◽

Average Diameter ◽

Lead Zirconate ◽

Electrospinning Process ◽

X Ray Diffraction ◽

Micro Fabrication ◽

X Ray ◽

Pure Perovskite Phase

This paper reports the fabrication of partially aligned Lead Zirconate Titanate (PZT) nanofibers with an average diameter of 150 nm by Sol-Gel Electrospinning process. Both randomly distributed and uniaxially aligned PZT fibers were obtained from the sol-gel PZT solution with viscosity modified by polyvinyl pyrrolidone (PVP). The diameters of the nano fibers can be further reduced or controlled for different applications. SEM, TEM and x-ray diffraction (XRD) are used to characterize the nano-fibers and their crystal structures. XRD confirmed that pure perovskite phase was formed after the as-spun fibers being annealed at about 650°C. Different approaches have been explored to fabricate the uniaxially-aligned PZT nano-fibers. Microelectromechanical (MEMS) based micro-fabrication technologies are used to assist the development of the nano-fibers in designing the test samples, depositing and patterning the electrodes, and also testing the performance of the nano fibers.

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A Study on the Microstructure of Preferred Orientation of Lead Zirconate Titanate (PZT) Thin Films

Journal of Materials Research ◽

10.1557/jmr.1997.0145 ◽

1997 ◽

Vol 12 (4) ◽

pp. 1043-1047 ◽

Cited By ~ 10

Author(s):

Chang Jung Kim ◽

Dae Sung Yoon ◽

Joon Sung Lee ◽

Chaun Gi Choi ◽

Kwangsoo No

Keyword(s):

Electron Microscopy ◽

Thin Films ◽

Lead Zirconate Titanate ◽

Sol Gel ◽

Lead Zirconate ◽

Preferred Orientation ◽

X Ray Diffraction ◽

Pzt Thin Films ◽

X Ray ◽

Zirconate Titanate

The lead zirconate titanate (PZT) thin films were fabricated using sol-gel spin coating onto Pt/Ti/glass substrates. Effects of the holding time for pyrolysis and the coating cycle on the preferred orientation of the PZT thin films were studied. The films were fabricated with different coating cycles (3, 5, 7, 9, 11), dried at 330 °C for different holding times (5, 30, 60 min), and then annealed at the same temperature of 650 °C using rapid thermal annealing (RTA). The preferred orientations of the films were investigated using x-ray diffraction and glancing angle x-ray diffraction. The microstructure and the selected area diffraction pattern of the PZT thin films were also investigated using scanning electron microscopy (SEM) and transmission electron microscopy (TEM), respectively.

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PZT THICK FILMS FABRICATION USING A SOL-GEL BASED 0-3 COMPOSITE PROCESSING

International Journal of Modern Physics B ◽

10.1142/s0217979202009706 ◽

2002 ◽

Vol 16 (01n02) ◽

pp. 242-248 ◽

Cited By ~ 20

Author(s):

CHANGLEI ZHAO ◽

ZHIHONG WANG ◽

WEIGUANG ZHU ◽

XI YAO ◽

WEIGUO LIU

Keyword(s):

Lead Zirconate Titanate ◽

Thick Films ◽

Sol Gel ◽

Ceramic Powder ◽

Titanium Isopropoxide ◽

Lead Zirconate ◽

X Ray Diffraction ◽

Composite Processing ◽

Coating Method ◽

The Stability

A sol-gel based 0-3 ceramic-ceramic composite processing has been applied to fabricate lead zirconate titanate thick films with a composition near the morphotropic phase boundary, PZT53/47. In order to eliminate the effects of humidity on the stability of the sols, solid PZT precursors are prepared from partially stabilized titanium isopropoxide, lead acetate trihydrate and zirconium acetylacetonate without any solvent. Then the solid precursors were dissolved in 2-methoxythanol to form sols. Certain quantum modified PZT ceramic powder was dispersed into this obtained solution. Crack-free thick films with series thickness of 5 ~ 20-μm were fabricated using spin-coating method. The surface morphology and structural properties of the films were studied with Field Emission-SEM and X-ray diffraction techniques respectively. Electrical properties were compared with those of thin films. Thick PZT films should have good perspective in the application of new piezoelectric devices that cannot be achieved using conventional thin film or bulk techniques.

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Pb(Zr,Ti)O3 Nanofibers Produced by Electrospinning Process

MRS Proceedings ◽

10.1557/proc-1129-v07-08 ◽

2008 ◽

Vol 1129 ◽

Author(s):

Ebru Mensur Alkoy ◽

Canan Dagdeviren ◽

Melih Papila

Keyword(s):

Lead Zirconate Titanate ◽

Perovskite Phase ◽

Sol Gel ◽

Precursor Solution ◽

Lead Zirconate ◽

Electrospinning Process ◽

X Ray Diffraction ◽

Fiber Mats ◽

Xrd Pattern ◽

X Ray

AbstractLead zirconate titanate (PZT) nanofibers are obtained by electrospinning a sol-gel based solution and polyvinyl pyrrolidone (PVP) polymer, and subsequent sintering of the electrospun precursor fibers. The PVP content of the precursor solution is critical in the formation of the fully fibrous mats. Scanning electron microscope (SEM) is used to examine the morphology of the precursor fibers and annealed PZT nanofibers. The diameters of the precursor PZT/PVP green fibers have increased with the aging of the precursor solution along with an increase in the viscosity. The viscosity of 500 mPa results in successful fibrous mats, yielding green PZT/PVP fibers with a diameter of 400 nm. The fiber mats are then sintered at 700°C. X-ray diffraction (XRD) pattern of the annealed PZT fibers exhibits no preferred orientation and a pure tetragonal perovskite phase. Preparation of piezocomposites by infusion of epoxy into the nanofiber mat facilitates successful handling of the fragile mats and enables measurements of dielectric properties.

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