کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1465638 | 989700 | 2006 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
WO3 and ZnO-doped SnO2 ceramics as insulating material
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: WO3 and ZnO-doped SnO2 ceramics as insulating material WO3 and ZnO-doped SnO2 ceramics as insulating material](/preview/png/1465638.png)
چکیده انگلیسی
SnO2 ceramics doped with ZnO and WO3 were prepared by mixed oxide method. The effect of ZnO and WO3 additives could be explained by the substitution of Sn4+ by Zn2+ and W6+. The addition of WO3 inhibits the grain growth due to the segregation of SnZnWO8 and ZnWO6 at the grain boundaries without strong influence on the densification process. The electrical characterization (log E × log J) shows that the ternary system SnO2–ZnO–WO3 exhibits a very high resistivity of around 1014 Ω m. Independently of the WO3 concentration, the electrical conductivity of the SnO2–ZnO–WO3 system is always lower than that of the undoped tin dioxide.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 32, Issue 6, 2006, Pages 713–718
Journal: Ceramics International - Volume 32, Issue 6, 2006, Pages 713–718
نویسندگان
M.A.L. Margionte, A.Z. Simões, C.S. Riccardi, F.M. Filho, A. Ries, L. Perazolli, J.A. Varela,