کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1476384 1510146 2007 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis of BaCeO3 and BaCe0.9Y0.1O3−δ from mixed oxalate precursors
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Synthesis of BaCeO3 and BaCe0.9Y0.1O3−δ from mixed oxalate precursors
چکیده انگلیسی

An oxalate precipitation route is proposed for the synthesis of BaCe1−xYxO3 (x = 0 and 0.1) after calcination at 1100 °C. The precipitation temperature (70 °C) was a determinant parameter for producing a pure perovskite phase after calcination at 1100 °C for 1 h. TG/DTA measurements showed that the co-precipitated (Ba, Ce and Y) oxalate had a different thermal behaviour from single oxalates. Despite a simple grinding procedure, sintered BaCe0.9Y0.1O3−δ pellets (1400 °C, 48 h) presented 90.7% of relative density and preliminary impedance measurements showed an overall conductivity of around 2 × 10−4 S cm−1 at 320 °C.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 27, Issues 13–15, 2007, Pages 3597–3600
نویسندگان
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