کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5458489 1516174 2017 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Improvement on electrical properties of Ba0.9Ca0.1Ti0.9Sn0.1O3 ceramics with the addition of CeO2
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Improvement on electrical properties of Ba0.9Ca0.1Ti0.9Sn0.1O3 ceramics with the addition of CeO2
چکیده انگلیسی
The Ba0.90Ca0.10Ti0.90Sn0.10O3-xCeO2 (x = 0.0.09) ceramics (BCST-xCe, x = 0-0.09) were prepared by traditional solid-state sintering method. All the BCST-xCe samples present pure perovskite structures with the coexistence of orthorhombic phase and tetragonal phase. Ce ions occupy the B-site of the BCST lattice in the form of Ce4+, which can be attributed to the decrease of the dissipation factor and Td with increasing Ce content. Small amount of CeO2 (x = 0-0.03) motivates the formation of denser microstructures. The optimized piezoelectric parameters were obtained at x = 0.03 with d33 = 541pC/N, kp = 47.5%, which can be attributed to the MPB effect and the dense microstructure induced by the Ce doping. Dielectric behavior of all the sintered ceramics describes a mixed ferroelectric-relaxor feature. With the increasing of Ce content, the remnant polarization Pr decreases from 10.78μC/cm2 to 7.94μC/cm2.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 720, 5 October 2017, Pages 562-566
نویسندگان
, , , , , , ,