کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1556416 | 999188 | 2015 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
SiC Nanowires Toughed HfC Ablative Coating for C/C Composites
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
شیمی مواد
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In order to improve ablation resistance of carbon/carbon (C/C) composites, SiC nanowires were prepared on C/C composites surface in prior through chemical vapor reaction before HfC coating. SiC nanowires grew randomly and had good combination with HfC coating. SiC nanowires toughed HfC coating had lower linear and mass ablation rates than original HfC coating. The surface was much flatter and exhibited smaller cracks in center region. The ablation mechanism of HfC coating has been changed by SiC nanowires. Thicker HfO2 fused layer was formed on the surface of the toughed HfC coating, which could provide efficient protection for C/C composites. Therefore, SiC nanowires toughed HfC coating behaved in better ablation resistance.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Materials Science & Technology - Volume 31, Issue 1, January 2015, Pages 70–76
Journal: Journal of Materials Science & Technology - Volume 31, Issue 1, January 2015, Pages 70–76
نویسندگان
Hejun Li, Yongjie Wang, Qiangang Fu, Yanhui Chu,