2003
DOI: 10.1016/s0040-6031(02)00353-2
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Lowering the synthesis temperature of high-purity BaTiO3 powders by modifications in the processing conditions

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Cited by 42 publications
(27 citation statements)
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“…The effect of BaCO 3 milling on decreasing the reaction temperature was relatively smaller than that of fine anatase TiO 2 , due to the decomposition temperature differences among the three types of powder at this temperature range. The endothermic DTA peak near 640°C (peak a) was from the decomposition of BaCO 3 while that of near 840°C (peak b) was from the BaCO 3 phase transition from γ to β phase [13]. Since most of the BaCO 3 phase in A-powder was decomposed near 640°C, the endothermic peak of this powder was large in this region while the peak due to the γ→β phase transition was insignificant compared to that of other powders.…”
Section: Methodsmentioning
confidence: 88%
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“…The effect of BaCO 3 milling on decreasing the reaction temperature was relatively smaller than that of fine anatase TiO 2 , due to the decomposition temperature differences among the three types of powder at this temperature range. The endothermic DTA peak near 640°C (peak a) was from the decomposition of BaCO 3 while that of near 840°C (peak b) was from the BaCO 3 phase transition from γ to β phase [13]. Since most of the BaCO 3 phase in A-powder was decomposed near 640°C, the endothermic peak of this powder was large in this region while the peak due to the γ→β phase transition was insignificant compared to that of other powders.…”
Section: Methodsmentioning
confidence: 88%
“…Even though all three powders contained CaCO 3 , most of the TG/DTA results were due to the effects of BaCO 3 and TiO 2 because the amount of CaCO 3 was very small. The weight loss between 600 and 900°C corresponded to the BaCO 3 decomposition [13]. A-powder had a lower decomposition temperature than R-and N-powders, due to the effects of fine, anatase-rich TiO 2 phase and previous milling of BaCO 3 .…”
Section: Methodsmentioning
confidence: 99%
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“…On the other hand, various types of apparatus are used in treatment. It should be noted that most of the available investigations concern MChA of either reaction mixture [11][12][13][14][15][16][17][18][19] or its components [20,21]. Such an approach allows to reduce annealing temperature from 1000-1100 • C to 600-700 • C at which interaction of reagents and BMT formation begins.…”
Section: Introductionmentioning
confidence: 99%