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
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Preparation of PbTiO3 nanoceramics based on hydrothermal nanopowders and characterization of their electrical properties
چکیده انگلیسی
In this work, we report the preparation of lead titanate (PT) nanoceramics (with an average grain size of ∼200 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 ∼180 (at 1 kHz) at room temperature and reached a maximum value of 8330 at ∼490 °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 1–2, 15 May 2010, Pages 10-13
نویسندگان
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