کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10629837 | 991190 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis, characterization, and electrical conduction of 10Â mol% Dy2O3-doped CeO2 ceramics
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Synthesis, characterization, and electrical conduction of 10Â mol% Dy2O3-doped CeO2 ceramics Synthesis, characterization, and electrical conduction of 10Â mol% Dy2O3-doped CeO2 ceramics](/preview/png/10629837.png)
چکیده انگلیسی
Well-densified 10 mol% Dy2O3-doped CeO2 (20DDC) ceramics with average grain sizes of â¼0.12-1.5 μm were fabricated by pressureless sintering at 950-1550 °C using a reactive powder thermally decomposed from a carbonate precursor, which was synthesized via a carbonate coprecipitation method employing nitrates as the starting salts and ammonium carbonate as the precipitant. Electrical conductivity of the ceramics, measured by the dc three-point impedance method, shows a V-shape curve against the average grain size. The sample with the smallest grain size of 0.12 μm exhibits a high conductivity of â¼10â1.74 S/cm at the measurement temperature of 700 °C, which is about the same conduction level of the micro-grained 10 mol% Sm2O3- or Gd2O3-doped CeO2, two leading electrolyte materials.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 25, Issue 6, March 2005, Pages 949-956
Journal: Journal of the European Ceramic Society - Volume 25, Issue 6, March 2005, Pages 949-956
نویسندگان
Yarong Wang, Toshiyuki Mori, Ji-Guang Li, John Drennan,