کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5437678 | 1398176 | 2017 | 28 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Influence of La2Mo2O9 on the sintering behavior and electrochemical properties of gadolinium-doped ceria
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Gadolinium-doped ceria (known as CGO or GDC) is a good oxide-ion conductor which presents potential application for solid-state electrochemical devices. However, one of the main drawbacks of this material is the high sintering temperature required to obtain dense ceramic. In this paper, we report a new way to reduce densification temperature of CGO by adding x weight percent of La2Mo2O9 material (0⤠xâ¤10). This latter is also a good oxide-ion conductor at high temperature (>580 °C) which allows the preservation of the electrochemical properties of CGO as shown by impedance spectroscopy. The sintering behavior is then studied using dilatometric measurements and mechanism of densification is discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 43, Issue 13, September 2017, Pages 10137-10143
Journal: Ceramics International - Volume 43, Issue 13, September 2017, Pages 10137-10143
نویسندگان
Gaëtan Buvat, Eric Quarez, Olivier Joubert,