کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10629545 | 991068 | 2014 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Highly dense and fine-grained SiC with a Sc-nitrate sintering additive
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Highly dense and fine-grained SiC with a Sc-nitrate sintering additive Highly dense and fine-grained SiC with a Sc-nitrate sintering additive](/preview/png/10629545.png)
چکیده انگلیسی
To explain the sintering behavior of 5Â wt.% Sc-nitrate-added SiC, which showed a 99.3% density with the fine 156Â nm-sized grains, a microstructural study using high resolution electron microscopy (HREM) was performed and the results were compared with those of Tm-added SiC, which had a mean grain size of 753Â nm. Contact flattening was proposed as a governing sintering mechanism for Sc-added SiC based on the experimental observations of an inter-granular phase thinner than 1Â nm along with the straight grain boundaries. On the other hand, the Tm-added SiC showed a several nm-thick inter-granular phase with a curved grain boundary morphology, which is the typical microstructure that can be obtained by a solution-reprecipitation mechanism combined with Ostwald ripening.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 34, Issue 3, March 2014, Pages 825-830
Journal: Journal of the European Ceramic Society - Volume 34, Issue 3, March 2014, Pages 825-830
نویسندگان
Alfian Noviyanto, Bong-Ki Min, Hyun-Woo Yu, Dang-Hyok Yoon,