Influence of the solution pH on the morphological, structural and electrical properties of Bi3.50La0.50Ti3O12 thin films obtained by the polymeric precursor method

Simões, Alexandre Zirpoli; Ries, Andreas; Moura, F.; Riccardi, C. S.; Longo, Elson; Varela, José Arana

doi:10.1016/j.matlet.2005.03.051

Cited by 7 publications

(4 citation statements)

References 19 publications

(19 reference statements)

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“…The polymeric precursor solution was prepared by the Pechini method, which has been used to synthesize polycationic powders [20][21][22][23][24][25][26][27][28]. The process is based on the metallic citrate polymerization using ethylene glycol.…”

Section: Methodsmentioning

confidence: 99%

Surface equilibrium angle for anisotropic grain growth in SnO2 systems

et al. 2007

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Usually, the kinetic models used in the study of sintered ceramic are performed by means of indirect physical tests, such as, results obtained from data of linear shrinkage and mass loss. This fact is justified by the difficulty in the determinations of intrinsic parameters of ceramic materials along every sintering process. In this way, the technique of atomic force microscopy (AFM) was used in order to determine the importance and the evolution of the dihedral angle in the sintering of 0.5 mol% MnO 2 -doped tin dioxide obtained by the polymeric precursor method.

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Section: Methodsmentioning

confidence: 99%

Surface equilibrium angle for anisotropic grain growth in SnO2 systems

et al. 2007

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“…This method consists of formation of a polymeric net starting from a polyhydroxy alcohol and an alpha-hydroxycarboxylic acid, with metallic cations homogeneously distributed throughout the matrix 6 . However, there are few works in the literature describing the influence of pH on synthesis of powders prepared by the polymeric precursor method [7][8][9] . To better understand this influence, the objective of the present work is to study the influence of pH on the synthesis of pigments.…”

Section: Introductionmentioning

confidence: 99%

Influence of the pH on Al2O3:CuO pigments prepared by a polymeric precursor method

et al. 2012

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Copper (II) aluminate, CuAl 2 O 4 , which is known to be an inverse spinel contains a d 9 metal ion and possesses interesting electronic, magnetic and catalytic properties and is used in industry as ceramic pigments, coatings and catalysts. Al 2 O 3 with 10 mol% Cu (AlCu10) was synthesized by the polymeric precursor method varying the pH of the precursor solution with addition of ammonium hydroxide and ethylenediamine. It was shown that the pyrolysis of the polymeric chain occurs in higher temperatures for samples prepared in higher values of pH. The colorimetric coordinates exhibit dependence with pH and with the increase of annealing temperature. AlCu10 samples prepared with higher values of pH present lower values of colorimetric coordinates, indicating alterations in its color. The luminosity parameters L* increase also as a function of pH.

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“…The role of templates in this case is to increase the nucleation density and allows the consumption of oxygen vacancies by changing their oxygen nonstoichiometry and thus preventing or reducing accumulation of oxygen vacancies near the interface. This value is relatively reasonable for application in memories once a high leakage current generally leads to the loose of the stored data written in a cell and, thus, requires a frequent refresh and high power consumption [38]. The room-temperature polarization-electric field hysteresis loops of samples obtained by SSR and PPM are shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

Influence of processing route on electrical properties of Bi4Ti3O12 ceramics obtained by tape-casting technology

Ranieri

Aguiar

Cilense

et al. 2015

Materials Research Bulletin

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A B S T R A C TBismuth titanate powders (Bi 4 Ti 3 O 12 -BIT) were fabricated by solid state reaction (SSR) and polymeric precursor method (PPM). From these powders, Bi 4 Ti 3 O 12 pellets were obtained by tape-casting using plate-like templates particles prepared by a molten salt method. The BIT phase crystallizes in an orthorhombic structure type with space group Fmmm. Agglomeration of the particles, which affects the densification of the ceramic, electrical conduction and leakage current at high electric fields, was monitored by transmission electronic microscopy (TEM) analyses. FEG-SEM indicated that different shape of grains of BIT ceramics was influenced by the processing route. Both SSR and PPM methods lead to unsaturated P-E loops of BIT ceramics originating from the highly c-axis orientation and high conductivity which was affected by charge carriers flowing normally to the grain boundary of the crystal lattice.

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Influence of the solution pH on the morphological, structural and electrical properties of Bi3.50La0.50Ti3O12 thin films obtained by the polymeric precursor method

Cited by 7 publications

References 19 publications

Surface equilibrium angle for anisotropic grain growth in SnO2 systems

Surface equilibrium angle for anisotropic grain growth in SnO2 systems

Influence of the pH on Al2O3:CuO pigments prepared by a polymeric precursor method

Influence of processing route on electrical properties of Bi4Ti3O12 ceramics obtained by tape-casting technology

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