کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1465002 | 989677 | 2006 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of β-Si3N4 seeds on densification and fracture toughness of silicon nitride
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Composite materials based on Si3N4 were synthesized by introducing previously prepared β-Si3N4 seeds into a mixture of α-Si3N4 and 10 wt% of sintering additive. The densification process during pressureless sintering was studied in the presence of CeO2 additive, which is less frequently used as sintering aid to Si3N4. The effect of seed concentration and sintering time on the densification and fracture toughness was followed. The results showed that the addition of seeds retarded densification. On the other hand, fracture toughness passes through maximum at the content of 3 wt% seeds.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 32, Issue 3, 2006, Pages 303–307
Journal: Ceramics International - Volume 32, Issue 3, 2006, Pages 303–307
نویسندگان
Aleksandra Vučković, Snežana Bošković, Branko Matović, Milan Vlajic, Vladimir Krstic,