کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1548128 | 997721 | 2014 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Relationship between lattice mismatch and ionic conduction of grain boundary in YSZ
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Relationship between lattice mismatch and ionic conduction of grain boundary in YSZ Relationship between lattice mismatch and ionic conduction of grain boundary in YSZ](/preview/png/1548128.png)
چکیده انگلیسی
The grain boundary plays an important role in the electrical behaviors of solid oxide electrolytes for solid state fuel cells. To reveal the relationship between the structure and the ionic conductivity of grain boundary, the conductive properties of {1 1 1} and {1 1 0} twist grain boundaries in 8 mol% yttria-stabilized zirconia have been examined. These boundaries have a series of Σ values defined by the coincident site lattice model. It has been found that the activation energy of {1 1 1} twist grain boundary increases and then decreases with the Σ value, while that of the {1 1 0} boundary shows an opposite trend. It is suggested that the properties can reflect the balance of the effects of lattice mismatch on the diffusion ability of oxygen vacancies and the segregation of oxygen vacancies and Y3+ ions. Therefore, the properties in polycrystalline electrolyte can be adjusted by controlling the grain boundary structures.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Progress in Natural Science: Materials International - Volume 24, Issue 1, February 2014, Pages 83-86
Journal: Progress in Natural Science: Materials International - Volume 24, Issue 1, February 2014, Pages 83-86
نویسندگان
Fei Ye, Chun Yu Yin, Ding Rong Ou, Toshiyuki Mori,