On the synthesis and crystallization process of nanocrystalline PZT powders obtained by a hybrid sol–gel alkoxides route

Suárez-Gómez, A.; Sato-Berrú, R. Y.; Toscano, Rubén A.; Saniger-Blesa, José Manuel; Calderón-Piñar, F.

doi:10.1016/j.jallcom.2006.10.143

Cited by 25 publications

(13 citation statements)

References 26 publications

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“…In a typical sol-gel process, 2-MOE was usually used to control pH, viscosity, liquid surface tension, and form a stable complex without particles sedimentation [37]. After stirring at 40 °C for 3 h, the mixture appeared transparent, and turned into gel state after another 48 h of stirring.…”

Section: Methodsmentioning

confidence: 99%

Sintering Temperature-Dependence on Radiopacity of Bi(2−x) ZrxO(3+x/2) Powders Prepared by Sol-Gel Process

Chen

Lai

et al. 2018

Materials

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Bismuth oxide (Bi2O3) is an effective additive used to enhance radiography resolution for dental materials. However, there are potential concerns regarding its biocompatibility and connection to tissue discoloration. In the present study, we modified the radiopacity properties of Bi2O3 with zirconium oxide (ZrO2) using a sol-gel process and investigated the composition, as well as the effects of heat treatment temperature using Thermogravimetry analysis (TGA), differential scanning calorimetry (DSC), Fourier transform infrared spectroscopy (FT-IR), transmission electron microscopy (TEM), and X-ray diffraction (XRD). The harvested Bi2−xZrxO3+x/2 particles showed that the dominant phase transferred from α-Bi2O3 to β-Bi7.38Zr0.62O12.31 after a heat treatment of over 750 °C for 2 h. As the x values of Bi2−xZrxO3+x/2 increased from 0.2 to 1.0, more zirconium oxide precipitated onto the particle surface, thus enhancing the surface roughness of particles. For sol-gel Bi1.8Zr0.2O3.1 powders (x = 0.2), the radiopacity values became 4.90 ± 0.23 and 5.83 ± 0.22 mmAl after a heat treatment of 500 °C and 750 °C, respectively.

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Section: Methodsmentioning

confidence: 99%

Sintering Temperature-Dependence on Radiopacity of Bi(2−x) ZrxO(3+x/2) Powders Prepared by Sol-Gel Process

Chen

Lai

et al. 2018

Materials

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“…The dependence of the additive concentration on the ferroelectric-paraelectric transition has been demonstrated in several solutions as, for example, Pb x Ca 1−x TiO 3 (PCT), Pb x Sr 1−x TiO 3 (PST), and PbZr 1−x Ti x O 3 (PZT). The last one has been extensively studied due to its useful piezoelectric properties [4,[12][13][14][15]. Chu and Chen [16] also observed Sr-doping effect on Sm-modified PT and verified that it can reduce the lattice anisotropy (c/a), and keep good dielectric and piezoelectric anisotropy properties.…”

Section: Introductionmentioning

confidence: 99%

Structural transition on Pb1−xSrxTiO3 produced by chemical method

Leal

Escote

Leite

et al. 2009

Journal of Alloys and Compounds

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“…As for the chosen synthesis route, we use an acetate/ alkoxides sol-gel three-steps route modified with acetylacetone as chelating agent and stabilized with 2-methoxyethanol (2-MOE) that has been clearly detailed previously 13 and later expanded and improved to take into account several important physicochemical factors 14 . One of those relevant factors under study has been the sol stability with time -or shelf life, as is usually termed-and the description of the aggregation kinetics 12 in order to achieve homogeneous solutions for any future processing: nanopowder synthesis, chemical solution deposition, electrophoretic deposition, simple wetting, and others.…”

Section: Introductionmentioning

confidence: 99%

A ‘Universal’ Bottom-up Sol-gel Based Synthesis of Pzt (1-x)/x Submicrometric Structures: 1. Dynamic Light Scattering Characterization of Precursor Stability and Aggregation Kinetics

Suárez-Gómez

Rodríguez‐Iglesias

2015

Mat. Res.

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This work proposes an extension of a sol-gel based synthesis route for obtaining highly hydrophobic, uniformly nanosized and stable precursor solutions of lead zirconate titanate [Pb(Zr 1-x Ti x )O 3 or PZT (1-x)/x] for any given (1-x)/x Zr:Ti ratio. Several representative PZT compositions were chosen and their precursors were studied by taking into account the time dependence of the mean particles size andthe predominant aggregation kinetics. Size distributions were recorded by the Dynamic Light Scattering technique and the aggregation kinetics was explored by considering a Diffusion-Limited Colloidal Aggregation model. Transmission electron microscopy was also used to characterize some morphological features of our resultant precursor nanoparticles. Our final results supports the universalization of this approach to any PZT composition and its extension to other material systems. This work is intended to be the first on a series dealing with the sol-gel based synthesis of any PZT material at any scale using a bottom-up approach.

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On the synthesis and crystallization process of nanocrystalline PZT powders obtained by a hybrid sol–gel alkoxides route

Cited by 25 publications

References 26 publications

Sintering Temperature-Dependence on Radiopacity of Bi(2−x) ZrxO(3+x/2) Powders Prepared by Sol-Gel Process

Sintering Temperature-Dependence on Radiopacity of Bi(2−x) ZrxO(3+x/2) Powders Prepared by Sol-Gel Process

Structural transition on Pb1−xSrxTiO3 produced by chemical method

A ‘Universal’ Bottom-up Sol-gel Based Synthesis of Pzt (1-x)/x Submicrometric Structures: 1. Dynamic Light Scattering Characterization of Precursor Stability and Aggregation Kinetics

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