Sinterable La0.8Sr0.2CrO3 and La0.7Ca0.3CrO3 powders by sucrose combustion synthesis

Prabhakaran, K.; Lakra, Jyotsna; Beigh, Mohd Oveas; Gokhale, N.M.; Sharma, S. C.; Lal, Ramji

doi:10.1007/s10853-006-0336-9

Cited by 9 publications

(17 citation statements)

References 19 publications

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“…The use of saccharides in the ceramic technology for considerable scale seems to be a new trend, but it has already been intensively developed by many researchers [12][13][14]. Mono-and disaccharides, as processing agents, have many advantages in comparison to commercially available acrylic monomers.…”

Section: Introductionmentioning

confidence: 99%

Thermal decomposition of monosaccharides derivatives applied in ceramic gelcasting process investigated by the coupled DTA/TG/MS analysis

Bednarek

Szafran

2012

J Therm Anal Calorim

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The paper reports the decomposition of saccharides derivatives in comparison to commercial substances during the process of binder removal from ceramic samples. The saccharides derivatives are polymers synthesized from glucose and fructose with acryloyl group in the sugar molecule. The synthesized compounds played the role of binder in the shaping of ceramic powders by gelcasting method. The method belongs to colloidal processes and allows to produce ceramic elements of complicated geometry. As ceramic powder Al 2 O 3 was used. The thermal analysis have been done on apparatus coupled with mass spectrometer. MS analysis showed what types of gasses are released to the atmosphere during the thermal decomposition of polymers. The obtained results showed important differences in decomposition of polymers obtained from commercial acrylamide, 2-hydroxyethyl acrylate and N,N 0 -methylenebisacrylamide in comparison to synthesized glucose and fructose derivatives. The measurements allowed to establish the sintering program of the green ceramic samples and evaluate whether harmful NO x gases are released to the atmosphere.

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Section: Introductionmentioning

confidence: 99%

Thermal decomposition of monosaccharides derivatives applied in ceramic gelcasting process investigated by the coupled DTA/TG/MS analysis

Bednarek

Szafran

2012

J Therm Anal Calorim

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“…The peaks at wave numbers 798, 724, 689 and 568 cm 21 are characteristic lattice modes of vibrations of crystalline YAG and therefore confirms the formation of YAG at 900uC. 20,25,[41][42][43] It appears that combustion of the foamy mass resulted in the formation of an amorphous and homogeneous mixture of yttrium and aluminium oxides, which reacts at 900uC to form the nanocrystalline YAG. Figure 4 shows surface area of the combustion product calcined at various temperatures.…”

Section: Resultsmentioning

confidence: 68%

“…The details of the combustion set-up are reported elsewhere. 40,41 It consists of a cylindrical stainless steel vessel which is divided into two compartments by means of a porous partition. The foamy mass obtained by drying the resin prepared from sucrose and the metal ions is charged in the top compartment and air is passed from the lower compartment, through the porous partition.…”

Section: Methodsmentioning

confidence: 99%

Sucrose combustion synthesis of nanocrystalline yttrium aluminium garnet (Y₃Al₅O₁₂) powder

Pabhakaran¹,

Ojha²,

Biswas³

et al. 2009

Advances in Applied Ceramics

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Nanocrystalline yttrium aluminium garnet (YAG) powder has been synthesised by sucrose combustion method. A foamy mass obtained by drying a resin prepared by heating yttrium nitrate, aluminium nitrate and sucrose undergoes self-sustained combustion when initiated with a burning splinter and produces YAG precursors containing amorphous oxides of yttrium and aluminium. The YAG phase has been obtained from the precursors during calcination at a relatively low temperature of 900uC without the formation of any intermediate compounds. The YAG powder prepared by planetary ball milling of the combustion product calcined at 900uC contained particles in the size range of 0?06 to 5 mm with a D 50 value of 1?04 mm and had a surface area of 21?5 m 2 g 21 . The YAG particles are aggregate of crystallites of the size nearly 30 nm.

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“…However, for YSZ2 ceramic with almost the same average grain size with YSZ1 ceramic, the blocking factor ¡ R was up to 0.56 (tested at 900°C) and the total conductivity was poor. This result is caused by the stable pores in YSZ2 ceramic, which hinder the free movement of the oxide ions 46) and decrease the conductivity consequently.…”

Section: Relative Density and Electrical Conductivity Of Ysz Ceramicmentioning

confidence: 99%

Preparation of dense yttria stabilized zirconia ceramic by low-temperature sintering zirconium oxalate sol

Liu

Fang

Su-fang

et al. 2015

J. Ceram. Soc. Japan

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This article reports a novel method of sintering zirconium oxalate (ZrOC 2 O 4 ) sol to prepare dense yttria stabilized zirconia (YSZ) ceramic at a low sintering temperature below 1300°C. A YSZ ceramic as control group was also prepared by sintering its nano-powder. The thermal decomposition process and sinter programme of the YSZ green bodies were investigated by thermogravimetry and differential thermal analysis. The sintered ceramics showed a crystallization structure in cubic phase and the crystallite size increased with the increasing sintering temperature in the range of 550 to 1200°C. For preparing dense YSZ ceramic, a zirconium oxalate sol was prepared by solgel method and then sintered with a temperature of 1000, 1100, 1200 and 1300°C. Compared with the ceramic obtained from YSZ ceramic nano-powder, the ceramic prepared by zirconium oxalate sol exhibited an enhancement of densification with higher relative density of 98.5% and higher electrical conductivity at all test temperatures.

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Sinterable La0.8Sr0.2CrO3 and La0.7Ca0.3CrO3 powders by sucrose combustion synthesis

Cited by 9 publications

References 19 publications

Thermal decomposition of monosaccharides derivatives applied in ceramic gelcasting process investigated by the coupled DTA/TG/MS analysis

Thermal decomposition of monosaccharides derivatives applied in ceramic gelcasting process investigated by the coupled DTA/TG/MS analysis

Sucrose combustion synthesis of nanocrystalline yttrium aluminium garnet (Y₃Al₅O₁₂) powder

Preparation of dense yttria stabilized zirconia ceramic by low-temperature sintering zirconium oxalate sol

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Sinterable La0.8Sr0.2CrO3 and La0.7Ca0.3CrO3 powders by sucrose combustion synthesis

Cited by 9 publications

References 19 publications

Thermal decomposition of monosaccharides derivatives applied in ceramic gelcasting process investigated by the coupled DTA/TG/MS analysis

Thermal decomposition of monosaccharides derivatives applied in ceramic gelcasting process investigated by the coupled DTA/TG/MS analysis

Sucrose combustion synthesis of nanocrystalline yttrium aluminium garnet (Y3Al5O12) powder

Preparation of dense yttria stabilized zirconia ceramic by low-temperature sintering zirconium oxalate sol

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Sucrose combustion synthesis of nanocrystalline yttrium aluminium garnet (Y₃Al₅O₁₂) powder