کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1637107 | 1516993 | 2012 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effects of high-energy ball milling oxide-doped and varistor ceramic powder on ZnO varistor
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effects of high-energy ball milling oxide-doped and varistor ceramic powder on ZnO varistor Effects of high-energy ball milling oxide-doped and varistor ceramic powder on ZnO varistor](/preview/png/1637107.png)
چکیده انگلیسی
ZnO varistor ceramics doped with Bi2O3, Sb2O3, Co2O3, Cr2O3, and MnO2 were prepared separately by two high-energy ball milling processes: oxide-doped and varistor ceramic powder. A comparison in the electrical and microstructural properties of the samples obtained by both methods was made. The best results on these characteristics were achieved through the high-energy ball milling varistor ceramic powder route, obtaining a nonlinear coefficient of 57 and a breakdown field of 617 V/mm at a sintering temperature of 1000 °C for 3 h. The samples synthesized by this technique show not only high density value, 95% of the theoretical density, but also a homogeneous microstructure, which compete with those obtained by the high-energy ball milling oxide-doped powder route. With the advantage that the high-energy ball milling varistor ceramic powder route can refine grain, increase the driving force of sintering, accelerate the sintering process, and reduce the sintering temperature.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Transactions of Nonferrous Metals Society of China - Volume 22, Issue 6, June 2012, Pages 1423-1431
Journal: Transactions of Nonferrous Metals Society of China - Volume 22, Issue 6, June 2012, Pages 1423-1431
نویسندگان
Dong XU, Dong-mei TANG, Lei JIAO, Hong-ming YUAN, Guo-ping ZHAO, Xiao-nong CHENG,