کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1811195 | 1025583 | 2011 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Varistor behavior study in undoped tungsten trioxide ceramic
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Varistor behavior study in undoped tungsten trioxide ceramic Varistor behavior study in undoped tungsten trioxide ceramic](/preview/png/1811195.png)
چکیده انگلیسی
In this paper, varistor property and mechanism of undoped tungsten trioxide (WO3) ceramic have been studied. Experimental results revealed that pure WO3 ceramic could exhibit a nonohmic behavior which was formed in the cooling process of ceramic, and very sensitive to heat treatment in different atmospheres. By comparison with the reported SnO2 and ZnO varistor systems, it is supposed that the surface of WO3 grain is more ready to adsorb oxygen and form high enough barriers at grain boundaries responsible for varistor behavior. The influences of heat treatments on the varistor properties of WO3 ceramic have been investigated.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica B: Condensed Matter - Volume 406, Issue 14, 15 July 2011, Pages 2807–2810
Journal: Physica B: Condensed Matter - Volume 406, Issue 14, 15 July 2011, Pages 2807–2810
نویسندگان
Zhongqiu Hua, Liang Dong, Haiqing Wang, Shujie Peng, Yu Wang,