کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7887167 | 1509789 | 2018 | 34 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Joining of SiCf/SiC using polycarbosilane and polysilazane preceramic mixtures
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
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چکیده انگلیسی
Polycarbosilane (PCS)/polysilazane (PSZ) preceramic mixtures with weight ratios of 100/0, 75/25, 50/50, 25/75, and 0/100 were used as a filler for the joining of SiCf/SiC to obtain high purity SiC at the joining region. SiCf/SiC was fabricated by the electrophoretic infiltration of a SiC-based matrix phase into Tyranno SA3 SiC fabrics followed by hot-pressing at 1750â¯Â°C under 20â¯MPa for 2â¯h in an Ar atmosphere. Microstructural analysis confirmed a sound join without cracks after joining at 1750â¯Â°C for 2â¯h under a pressure of 10â¯MPa. SiC was the only phase remaining at the joint when PCS was used, while a small amount of Si3N4 along with the main SiC were observed in the join using PSZ. The flexural strengths of the butt-joint SiCf/SiC were 120 and 137â¯MPa for the samples joined using a pure PCS and PSZ at 1750â¯Â°C, respectively, whereas those joined using the mixture fillers showed relatively lower strength.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 44, Issue 9, 15 June 2018, Pages 10443-10450
Journal: Ceramics International - Volume 44, Issue 9, 15 June 2018, Pages 10443-10450
نویسندگان
Dong-Hyuk Jeong, Arifin Septiadi, Pipit Fitriani, Dang-Hyok Yoon,