Influence of Zr on Structure and Dielectric Behavior of BaTiO&lt;sub&gt;3&lt;/sub&gt; Ceramics

Elbasset, Abdelhalim; Abdi, Farid; Lamcharfi, T.; Sayouri, S.; Abarkan, Mustapha; Echatoui, Nor-Said; Aillerie, Michel

doi:10.17485/ijst/2015/v8i13/56574

Cited by 11 publications

(3 citation statements)

References 17 publications

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“…The destabilization of this solution is assured by evaporation of the solvent in an oven at the temperature of 80°C for 96h.The different steps in the preparation of the Ba 0.0975 S 0.025 TiO 3 powders are similar to those we have in our previous work 6 . The xerogel obtained is ground in an agate mortar.…”

Section: Synthesissupporting

confidence: 75%

Characterization Micro/Nanostructures of Barium Strontium Titanate

Elbasset¹,

Abdi²,

Lamcharfi³

et al. 2016

Orient. J. Chem

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Structural characteristics of Ba 0.0975 S 0.025 TiO 3 (BS 0.025 T) ceramics calcined at different temperatures at 800, 850 and 900°C for 4 hours hove been investigated. Results DRX showed that the change in the cell parameter along a axis (a) is more important than that along c axis and is accompanied by spacing of these parameters. In addition they indicate that the diminuation of symmetry is caused by the increase of the calcination temperature This trend towards the tetragonale phase was confirmed by Raman spectroscopy. Electronic scan microscopy (SEM) has given the grains mean size, the latter increase and reaches a mean size of approximately 1.97 ìm when the calcination temperature increases equals 900°C.

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Section: Synthesissupporting

confidence: 75%

Characterization Micro/Nanostructures of Barium Strontium Titanate

Elbasset¹,

Abdi²,

Lamcharfi³

et al. 2016

Orient. J. Chem

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“…BBTZx ceramics samples with x = 0.075, 0.1, and 0.15 were prepared by the sol-gel method, using stoichiometric proportions of acetates of high purity: barium acetate (Ba(CH 3 Steps of the preparation of BT and BZT have been detailed elsewhere [25][26] . Phase identification of the samples was performed using X ray diffraction (Cu K ray, λ = 1.5418 Å).…”

Section: Experimental and Methodsmentioning

confidence: 99%

“…Several studies have examined the effect of doping on the dielectric properties and relaxer behavior, in particular doping with Zr (BZT) and Sr (BSTZ) [22][23][24] . Recently, we investigated the effect of substitution of Zr in the Ti site (BaZr x Ti 1-x O 3 ) and reported the diffuse behavior in BZT (for x> 0.1) 25 . Therefore, it would be interesting to study the effect of the substitution of Ti by Zr in other systems (nephews) as ((Ba 0.95 Be 0.05 ) (Ti 1-x Zr x ) O 3 ) (BBTZ x ).…”

Section: Introductionmentioning

confidence: 99%

Physical-Chemistry Study of a New Zr-Doped Babetio3 System

Elbasset¹,

Mrharrab²,

Sayouri³

et al. 2016

Orient. J. Chem

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A series of new type of lead-free ceramics Ba 0.095 Be 0.05 Ti 1-x Zr x O 3 (BBTZx) were prepared using the sol-gel method. X-ray diffraction results show that all powders crystallize in a perovskite-type phase, with the diffraction peaks of the BBTZ x powders shifting toward the smaller 2θ with increasing Zr content. On the other hand secondary phases (ZrO 2 ) were not detected in the diffractograms and the results of fluorescence spectroscopy measurements showed an increase in atomic percent of zirconium and a decrease of that of titanium, showing the incorporation of Zr ions in the BBT in place of Ti ones. The phase transition from tetragonal to cubic phase (T-C) was determined with the help of a new method based on the study of the thermal behavior of Cole-Cole diagrams (ε'' vs ε').

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