کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1464682 989669 2009 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Properties of Si/SiC ceramic composite subjected to chemical vapour infiltration
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Properties of Si/SiC ceramic composite subjected to chemical vapour infiltration
چکیده انگلیسی

Si/SiC ceramic composite was prepared by infiltration of liquid silicon into carbon preforms that was made from cotton fabric and phenolic resin. This composite was subjected to the chemical vapour infiltration (CVI), using methyltrichlorosilane as a precursor gas. The effect of infiltration time on densification and mechanical properties was studied. Results show a significant improvement in density by pore closure. Flexural strength increases with increasing infiltration time. However, beyond 60 h of infiltration, the strength improvement was insignificant. The high temperature oxidation resistance of the above ceramics was also studied. The CVI treated samples show considerable resistance to oxidation compared to untreated samples. Thermogravimetric analysis also confirmed the better oxidation resistance of the CVI treated samples.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 35, Issue 7, September 2009, Pages 2601–2607
نویسندگان
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