کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1462856 | 989639 | 2012 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of Sm2O3 on the microstructure and electrical properties of SnO2-based varistors
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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: Effect of Sm2O3 on the microstructure and electrical properties of SnO2-based varistors Effect of Sm2O3 on the microstructure and electrical properties of SnO2-based varistors](/preview/png/1462856.png)
چکیده انگلیسی
The effect of Sm2O3 on the microstructure and non-linear electrical properties of (Co, Nb)-doped SnO2-based varistors was investigated. The addition of Sm2O3 improved the non-linear characteristics of (Co, Nb)-doped SnO2-based varistors. The threshold electric field (EB) of SnO2-based varistors increased significantly from 5340 to 12,460 V cmâ1 and the mean grain size decreased from 4.7 μm to 1.7 μm as Sm2O3 concentration increased up to 0.20 mol%. There was an optimal value (0.20 mol%) of the Sm2O3 concentration. The sample doped with 0.20 mol% Sm2O3 had the highest non-linear coefficient (α = 28). The addition of Sm2O3 reduced the relative density of (Co, Nb)-doped SnO2-based varistors.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 38, Issue 1, January 2012, Pages 265-270
Journal: Ceramics International - Volume 38, Issue 1, January 2012, Pages 265-270
نویسندگان
H. Bastami, E. Taheri-Nassaj,