Phase formation, microstructure and dielectric properties of Ba(Zr0.1Ti0.9)O3 ceramics prepared via the combustion technique

Julphunthong, Phongthorn; Bongkarn, Theerachai

doi:10.1016/j.cap.2010.11.064

Cited by 32 publications

(12 citation statements)

References 24 publications

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“…However, at 600°C the peak characteristic of the reflection phase TiO 2 decreases almost completely and also registers the birth of the characteristic reflection peaks of BTZ0.05 phase. Too we noted that the powder is completely crystallized into the perovskite phase, at 600 °C, with the presence of a secondary phase (ZrO 2 ) at 2q 24°, this crystallization temperature is significantly lower than other processes like classical pathway and the solid coprecipitation 12-13-14 and also for solgel preparation method 15 . On the other hand, the intensity of the secondary phase decreases with Even if, we see that the spectrum of the powder calcined at 1000°C, for 4 h, is virtually a reproduction of the XRD spectrum corresponding to the calcined powder at 600°C.…”

Section: Resultsmentioning

confidence: 90%

Physicochemical characteristic of BaTi0.95Zr0.05O3

Mrharrab¹,

Elbasset²,

Sayouri³

2016

Orient. J. Chem

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Physical and chemical properties of BaTiO 3 (BT) and BaTi 0.95 Zr 0.05 O 3 (BZT0.05) ceramics have been studied. These powders are prepared by the Sol-gel process and calcined at different temperatures [500°C-1000°C]. X-Ray Diffraction (XRD) showed a crystallization of BT and BZT0.05 powders in the perovskite phase after a calcination temperature at 600°C, during 4 hours, but in the presence of some traces of zirconium oxide for the doped powder. Also, the effect of zirconium addition on dielectric properties to BT is analyzed. Indeed, dielectric measurements carried out have shown the presence of a second anomaly for Zr doped material at 60°C; an anomaly that has been attributed to structural transition.

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Section: Resultsmentioning

confidence: 90%

Physicochemical characteristic of BaTi0.95Zr0.05O3

Mrharrab¹,

Elbasset²,

Sayouri³

2016

Orient. J. Chem

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“…Recently, the combustion technique is increasingly used for the preparation of perovskite ceramics because of their uncomplicated [7][8][9][10][11][12][13]. The liquid phase and energy released which are produced by the melting and decomposition fuel effectively speeds up the chemical reaction of raw materials.…”

Section: Introductionmentioning

confidence: 99%

Influence of Firing Temperatures on Phase Formation and Microstructure of La_0.92Mg_0.18Fe_0.90O₃ Ceramics Synthesized via the Combustion Route

Julphunthong

Chootin

Suansawan

et al. 2013

Integrated Ferroelectrics

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A novel combustion technique has been developed to synthesize La 0.92 Mg 0.18 Fe 0.90 O 3 or LMF ceramics. The NH 2 CH 2 COOH was used as the fuel to accelerate the chemical reaction of raw materials. Thermogravimetric TG and differential thermal analysis DTA were used to estimate the calcination temperature in the range from 800 to 1000 • C. The pure perovskite phase was obtained for the samples calcined at 900 • C for 2 h. This calcination temperature was selected for the pellets sintered between 1000 • C and 1200 • C for 2 h. The effect of calcination and sintering temperatures on the phase and morphology evolution of perovskite LMF was investigated. The XRD patterns indicated that LMF exhibited orthorhombic perovskite structure. With increasing the firing temperatures, the lattice parameters and the unit cell volume changed only slightly; the average particle size and the average grain size tended to increase from 133 to 227 nm and 0.40 to 0.92 μm, respectively. The density of sintered ceramics changed between 3.19 and 3.37 g/cm 3 depending on the sintering temperature.

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“…Recently, our previous work has successfully fabricated different oxides ceramics such as: BaZrO 3 [16], SrZrO 3 [17], BaTiO 3 [18], CaZrO 3 [19], Ba(Ti 1-x Zr x )O 3 [20], [21] using the combustion technique. This technique involves a self-sustained reaction between the reactive materials and the fuel which supplies a liquid medium at the start of the reaction.…”

Section: Introductionmentioning

confidence: 99%

Phase Formation, Microstructure and Dielectric Properties of Bismuth Potassium Titanate Ceramic Fabricated Using the Combustion Technique

Thongtha¹,

Laowanidwatana²,

Bongkarn³

2013

Integrated Ferroelectrics

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The effect of sintering temperature (975-1025 • C) on crystal structure, microstructure and dielectric properties of perovskite bismuth potassium titanate (BKT) ceramics was investigated. The pure BKT ceramics were firstly prepared using the combustion technique. The phase purity, crystal structure and microstructure of samples were examined using X-ray diffraction (XRD) and scanning electron microscopy (SEM). The purity phase of BKT samples, which has a tetragonal structure, was observed in all samples. The lattice parameters a, c and the tetragonality tended to decrease with increased sintering temperature. The SEM result showed the average grain size increased (0.37-0.58 μm) with the increase of sintering temperature (975-1025 • C). The shrinkage of the ceramics increased when the sintering temperature increased. The maximum density and dielectric constant at Curie temperature were around 5.71 g/cm 3 and 3850, and were obtained from the sample sintered at 1020 • C for 2 h. Importantly, the preparation using the combustion technique can improve the density and dielectric properties of BKT ceramics.

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Phase formation, microstructure and dielectric properties of Ba(Zr0.1Ti0.9)O3 ceramics prepared via the combustion technique

Cited by 32 publications

References 24 publications

Physicochemical characteristic of BaTi0.95Zr0.05O3

Physicochemical characteristic of BaTi0.95Zr0.05O3

Influence of Firing Temperatures on Phase Formation and Microstructure of La_0.92Mg_0.18Fe_0.90O₃ Ceramics Synthesized via the Combustion Route

Phase Formation, Microstructure and Dielectric Properties of Bismuth Potassium Titanate Ceramic Fabricated Using the Combustion Technique

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Phase formation, microstructure and dielectric properties of Ba(Zr0.1Ti0.9)O3 ceramics prepared via the combustion technique

Cited by 32 publications

References 24 publications

Physicochemical characteristic of BaTi0.95Zr0.05O3

Physicochemical characteristic of BaTi0.95Zr0.05O3

Influence of Firing Temperatures on Phase Formation and Microstructure of La0.92Mg0.18Fe0.90O3 Ceramics Synthesized via the Combustion Route

Phase Formation, Microstructure and Dielectric Properties of Bismuth Potassium Titanate Ceramic Fabricated Using the Combustion Technique

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Influence of Firing Temperatures on Phase Formation and Microstructure of La_0.92Mg_0.18Fe_0.90O₃ Ceramics Synthesized via the Combustion Route