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Title: Synthesis of anisotropic lead titanate powders for templated grain growth of textured piezoelectric ceramics
Authors: Ma, S. 
Fuh, J.Y.H. 
Zhang, Y.F. 
Lu, L. 
Keywords: Lead titanate
molten salt synthesis
piezoelectric ceramics
textured ceramics
Issue Date: Apr-2010
Citation: Ma, S., Fuh, J.Y.H., Zhang, Y.F., Lu, L. (2010-04). Synthesis of anisotropic lead titanate powders for templated grain growth of textured piezoelectric ceramics. Surface Review and Letters 17 (2) : 159-164. ScholarBank@NUS Repository.
Abstract: Needle-shaped PbTiO3 (PT) template particles were successfully synthesized using two different types of approaches, molten salt synthesis (MSS) and thermal synthesis method. In eutectic NaClKCl molten salt system, homogeneous and nonagglomerated needle-shaped PT particles were produced from PbO and needle-like TiO2 compound heated at 800-850°C for 2 h. The effect of heating temperature on the morphology of formed powders was studied in order to identify the optimum processing parameters. The template formation mechanism is discussed. Using thermal synthesis method, comparable needle-shaped PT crystalline particles were also obtained in one step. Plate-shaped PT powders were derived via flux synthesis. The effect of additives such as MnCl2 and LiF on the morphology of derived PT was studied. Adding a certain amount of MnCl2 led to the formation of well-defined plate-shaped PT particles. The structure and morphology of synthesized powders were characterized by means of X-ray diffraction (XRD) and field emission scanning electron microscopy (FE-SEM). © 2010 World Scientific Publishing Company.
Source Title: Surface Review and Letters
ISSN: 0218625X
DOI: 10.1142/S0218625X10013631
Appears in Collections:Staff Publications

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