کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9829322 | 1524488 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis and crystallization behavior of lead titanate from oxide precursors by a hydrothermal route
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
Lead titanate (PbTiO3, PT) crystals were synthesized from oxides, namely PbO and TiO2, by a hydrothermal route, in which the precursors were heated to 150 °C with durations from 8 to 32 h. The homogeneous PbTiO3 crystals with a single perovskite structure were obtained through the synthesis route. The influences of the Pb/Ti ratio, the KOH concentration, and the reaction time on the morphology and microstructure of PbTiO3 crystals were investigated. By surveying the variations of the crystal micrographs, another formation mechanism could be proposed, as the following: dissolution-precipitation (nucleation)-crystal growth-recrystallization. Moreover, crystal growth was controlled by a layer-by-layer mode when the reaction time was prolonged.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Crystal Growth - Volume 284, Issues 3â4, 1 November 2005, Pages 434-439
Journal: Journal of Crystal Growth - Volume 284, Issues 3â4, 1 November 2005, Pages 434-439
نویسندگان
Xiuli Chen, Huiqing Fan, Laijun Liu,