کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1648445 | 1007557 | 2010 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Highly stable nonlinear behavior against impulse current of ZnO–Pr6O11–CoO–Cr2O3–Y2O3 varistors
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Highly stable nonlinear behavior against impulse current of ZnO–Pr6O11–CoO–Cr2O3–Y2O3 varistors Highly stable nonlinear behavior against impulse current of ZnO–Pr6O11–CoO–Cr2O3–Y2O3 varistors](/preview/png/1648445.png)
چکیده انگلیسی
The nonlinear electrical behavior against the impulse stress (400–1200 A) in the ZnO–Pr6O11–CoO–Cr2O3–Y2O3 varistors has been investigated with sintering time. The sintering time did have a significant effect on the clamp ratio, which exhibits a surge protection capability. The varistors sintered for 1 h exhibited the best clamp characteristics, in which the clamp voltage ratio was in the range of K = 1.61–1.92 at a lower impulse current region (5–50 A) and was in the range of K = 2.06–2.55 at a higher single impulse current region (400–1200 A). The best electrical stability against the multi-impulse aging stress of 1200 A was also obtained from the varistors sintered for 2 h, where %ΔE1 mA =−1.6%, %Δα =1.3%, and %ΔJL =−4.9%.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 64, Issue 23, 15 December 2010, Pages 2631–2634
Journal: Materials Letters - Volume 64, Issue 23, 15 December 2010, Pages 2631–2634
نویسندگان
Choon-W. Nahm,