کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10630041 | 991220 | 2005 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Processing of textured zinc oxide varistors via templated grain growth
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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: Processing of textured zinc oxide varistors via templated grain growth Processing of textured zinc oxide varistors via templated grain growth](/preview/png/10630041.png)
چکیده انگلیسی
Textured, dense zinc oxide varistors were successfully fabricated by Templated Grain Growth (TGG) technique. Rod-like, anisotropic ZnO particles (templates) were synthesized by homogeneous precipitation method. The templates are aligned in such a position where c-axes of the templates are parallel to the tape casting direction during the modified tape casting process. Since zinc oxide varistors are liquid phase sintered, addition of the templates to initial powder mixture does not result in constrained densification. The aligned zinc oxide templates grow anisotropically during sintering. (112¯0) and (101¯0) prismatic planes of the ZnO crystals (templates) grow faster than the other ZnO crystal planes. The growth of the templates results in texture development in zinc oxide varistors. As sintering temperature increases, fraction of textured grains in the microstructure increases. A template growth mechanism is also proposed for texturing zinc oxide varistors by TGG.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 25, Issue 9, June 2005, Pages 1663-1673
Journal: Journal of the European Ceramic Society - Volume 25, Issue 9, June 2005, Pages 1663-1673
نویسندگان
Ender Suvaci, Ä°. Ãzgür Ãzer,