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)
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Microstructure of friction surface developed on carbon fibre reinforced carbon-silicon carbide (Cf/C-SiC)
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
نویسندگان
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