کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8018889 | 1517251 | 2014 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enhanced relaxor ferroelectric behavior of BCZT lead-free ceramics prepared by hydrothermal method
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Ceramics in the solid solution system, Ba0.9Ca0.1Ti0.9Zr0.1O3-xNd3+, were prepared via a hydrothermal method and were assisted by microwave sintering, and the effects of Nd3+-doping on the electrical properties of Ba0.9Ca0.1Ti0.9Zr0.1O3 were studied. All the samples showed single perovskite structure without a second phase, and a change from the rhombohedral phase to the coexistence of tetragonal and cubic phase occurred at xâ¥0.025. The dielectric constant and dielectric loss both decreased with increasing Nd3+ content at 0.000â¤xâ¤0.015 and the sample with x=0.020 showed giant permittivity with higher dielectric loss. At x=0.025 and 0.030, the TC significantly decreased and the samples exhibited optimistic relaxor behavior with excellent frequency dispersion. The Pr decreased with increasing Nd3+ content and the samples with x=0.025 and 0.030 showed P-E loops with lower polarization loss. The piezoelectric constant (d33) measured at room temperature increased with increasing Nd3+ addition and exhibited the maximum value at x=0.025. The ferroelectric and piezoelectric properties could not be detected at samples with x=0.020.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 137, 15 December 2014, Pages 128-131
Journal: Materials Letters - Volume 137, 15 December 2014, Pages 128-131
نویسندگان
Yuwen Liu, Yongping Pu, Zixiong Sun,