کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1525077 | 1511840 | 2010 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Preparation of PbTiO3 nanoceramics based on hydrothermal nanopowders and characterization of their electrical properties
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
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چکیده انگلیسی
In this work, we report the preparation of lead titanate (PT) nanoceramics (with an average grain size of â¼200 nm in diameter) by using hydrothermal PT nanoparticles as start materials and characterized the dielectric and ferroelectric properties. The dielectric constant of the ceramic was found to be â¼180 (at 1 kHz) at room temperature and reached a maximum value of 8330 at â¼490 °C, suggesting that the Curie temperature of the nanoceramics is consistent with the known value of PT crystals. Ferroelectric domains and hysteresis loops were obtained through piezoelectric force microscopy measurements, which provide direct and clear evidence for the ferroelectricity in the nanoceramic samples.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Chemistry and Physics - Volume 121, Issues 1â2, 15 May 2010, Pages 10-13
Journal: Materials Chemistry and Physics - Volume 121, Issues 1â2, 15 May 2010, Pages 10-13
نویسندگان
Yongming Hu, Haoshuang Gu, Wanping Chen, Yu Wang,