کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7994593 1516159 2018 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of Li2CO3 addition in BiFeO3-BaTiO3 ceramics on the sintering temperature, electrical properties and phase transition
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Effect of Li2CO3 addition in BiFeO3-BaTiO3 ceramics on the sintering temperature, electrical properties and phase transition
چکیده انگلیسی
In this work, we reported that a BiFeO3-BaTiO3 (BF-BT) ceramics with Li2CO3 as a sintering aid was fabricated in order to develop a new materials sintered at low-temperature for piezoelectric applications. The phase transition, microstructure, dielectric, piezoelectric and ferroelectric properties, and temperature stability of the ceramics were investigated. The results show that the addition of Li2CO3 improves the electrical properties of BF-BT ceramics and decreases the sintering temperature from 990 °C to 930 °C. The obtained Li2CO3-doped ceramics sintered at 930 °C when x = 0.3 mol% have an optimized electrical properties, which were listed as follows: (kp = 0.294, Qm = 38.33, tanδ = 0.043 and d33 = 163 pC/N), high Curie temperatures (Tc = 508 °C) and high depolarization temperature (Td = 480 °C). These results indicate that this material is a promising candidate for high-temperature lead-free piezoelectric applications.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 735, 25 February 2018, Pages 386-393
نویسندگان
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