Formation Mechanism of Plate-like Bi^sub 4^Ti^sub 3^O^sub 12^ Particles in Molten Salt Fluxes

The plate-like Bi^sub 4^Ti^sub 3^O^sub 12^ particles were prepared by molten salt synthesis method. The influence of sintering temperature and cooling process on the microstructure of Bi^sub 4^Ti^sub 3^O^sub 12^ powders was studied. Much larger particles were formed at higher temperatures. The parti...

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Bibliographic Details
Published in:Integrated ferroelectrics 2014-01, Vol.154 (1), p.154
Main Authors: Zhao, Zhihao, Li, Xiaolei, Ji, Huiming, Deng, Minyang
Format: Article
Language:English
Subjects:
Cooling
Diffusion
Melting
Microstructure
Salt
Sintering
Temperature
Online Access:Get full text
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Summary:The plate-like Bi^sub 4^Ti^sub 3^O^sub 12^ particles were prepared by molten salt synthesis method. The influence of sintering temperature and cooling process on the microstructure of Bi^sub 4^Ti^sub 3^O^sub 12^ powders was studied. Much larger particles were formed at higher temperatures. The particles could grow larger in slow cooling process. The formation mechanism of plate-like Bi^sub 4^Ti^sub 3^O^sub 12^ particles in Na^sub 2^SO^sub 4^-K^sub 2^SO^sub 4^ system could be viewed as four processes: (1) solid reaction and nucleation, (2) plate-like structure formation, (3) diffusion and edge nucleation, (4) diffusion and epitaxial growth.
ISSN:1058-4587
1607-8489