کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1654062 | 1517348 | 2006 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Microwave-hydrothermal synthesis of tetragonal barium titanate
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Tetragonal barium titanate with c/a ratio of 1.0093 and average particle size of 240 nm was synthesized by the microwave-hydrothermal (MH) method at 240 °C in only 12 h. Temperatures above 200 °C were first introduced to the MH process in this study, since the temperature has a critical effect on the formation of tetragonal BaTiO3, shown by the experiments here. Hydrous titanium oxide and Ba(OH)2 were used as precursors, without halide anions and alkali-metal cations to avoid contamination. The kinetics of tetragonal phase formation in BaTiO3 was considerably promoted in the MH processing, in comparison with the conventional hydrothermal (CH) route.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 60, Issues 13–14, June 2006, Pages 1599–1602
Journal: Materials Letters - Volume 60, Issues 13–14, June 2006, Pages 1599–1602
نویسندگان
Weian Sun, Junqin Li,