کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10629720 | 991139 | 2012 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Microstructure of friction surface developed on carbon fibre reinforced carbon-silicon carbide (Cf/C-SiC)
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
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چکیده انگلیسی
We have used TEM to study the microstructure of friction surface of carbon fibre/carbon-silicon carbide composites brake discs after multi braking stop by using organic pads. A friction surface layer was developed consistently on the top of Si regions of the composites, but inconsistently on that of SiC and C. Inside the layer, amorphous silicon/silicon oxides appeared extensively with various non-metallic and metallic crystallites dispersed inside with sizes ranging from a few nanometers to several microns. A coherent interface between the friction layer and the composite surface was established under the braking conditions, whilst its sustainability varied notably in SiC and C regions. Microcracking near the friction surface appeared in SiC and Cf/C regions largely due to the extensive ductile deformation of SiC and weak interfaces between C and Cf. Material joining mechanisms were discussed to enlighten the friction transfer layer development on the surface of the composite discs.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 32, Issue 12, September 2012, Pages 3509-3519
Journal: Journal of the European Ceramic Society - Volume 32, Issue 12, September 2012, Pages 3509-3519
نویسندگان
Yuan Wang, Houzheng Wu,