کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1476535 991155 2008 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Dilatometer analysis of sintering behavior of nano-CeO2 particles
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Dilatometer analysis of sintering behavior of nano-CeO2 particles
چکیده انگلیسی

Dilatometer analysis was conducted for nano-CeO2 particles, with varying green densities. Bimodal shrinkage rate was noticed for nano-particles with respect to temperature, while single mode was observed for submicron particles. With decrease in green density, the intensity of the low temperature peak in the bimodal shrinkage rate increased compared with that of high temperature peak. The activation energies of nano-CeO2 sintering estimated by the master sintering curve were 370 and 440 kJ/mol for temperature ranges near the low temperature peak and near the high temperature peak, respectively, while the activation energy of submicron-CeO2 sintering was 420 kJ/mol. It was found that the low temperature peak characterized the sintering behavior of nano-CeO2, and this peak was responsible for the enhancement in the sinterability of green compact with low density.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 28, Issue 10, 2008, Pages 2019–2024
نویسندگان
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