کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7886387 1509785 2018 23 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Electrical characterization of BaTiO3 and Ba0.77Ca0.23TiO3 ceramics synthesized by the proteic sol-gel method
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Electrical characterization of BaTiO3 and Ba0.77Ca0.23TiO3 ceramics synthesized by the proteic sol-gel method
چکیده انگلیسی
In this work, we introduce a simple, low-cost, and ecofriendly method for producing barium titanate (BaTiO3-BT) and barium calcium titanate (Ba0.77Ca0.23TiO3-BCT) powders. The synthesis was performed by using a proteic sol-gel route which use coconut water in the polymerization step of the metallic precursor. We investigated the effects of the processing parameters with the density, microstructure, and (di)electric properties as sample quality indicators. The sintered ceramics exhibit single crystalline phase, relative density of 95%, a homogeneous microstructure, and an average grain size of 4 µm. The respective dielectric constants of 1200 (BT) and 700 (BCT), measured at room temperature, and the activation energy values for the conductive process are according to those reported in the literature for conventionally prepared ceramics.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 44, Issue 13, September 2018, Pages 15526-15530
نویسندگان
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