Journal ArticleDOI
C/C-SiC Composites for Advanced Friction Systems
TLDR
Ceramic Matrix Composites (CMC) as discussed by the authors is a type of composite material based on carbon fibres and silicon carbide matrices, which have superior tribological properties in comparison to grey cast iron or carbon/carbon.Abstract:
Ceramic Matrix Composites (CMC), based on reinforcements of carbon fibres and matrices of silicon carbide, show superior tribological properties in comparison to grey cast iron or carbon/carbon. In combination with their low density, high thermal shock resistance and good abrasive resistance, these Si-infiltrated carbon/carbon materials, called C/SiC or C/C-SiC composites, are promising candidates for advanced friction systems. Generally, the carbon fibres lead to an improved damage tolerance in comparison to monolithic SiC, whereas the silicon carbide matrix improves the wear resistance compared to carbon/carbon. In combination with new design approaches cost-efficient manufacturing processes have been developed and have lead to successfully tested prototypes of brake pads and disks, especially for passenger cars and emergency brake systems.read more
Citations
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Journal ArticleDOI
Amorphous carbon coating for improving the field emission performance of SiC nanowire cores
TL;DR: In this article, amorphous carbon (a-C) coatings have been successfully decorated onto the surface of SiC nanowires via chemical vapor reaction (CVR) using the Fe-Ni bibasic catalyst.
Journal ArticleDOI
Ablation of C/SiC, C/SiC–ZrO2 and C/SiC–ZrB2 composites in dry air and air mixed with water vapor
TL;DR: In this article, a model is proposed to predict the weight loss of C/SiC composites and it agrees well with the experimental data, and the results show that in dry air and air mixed with water vapor (5.5wt%) to simulate the hygrothermal condition, the loss rates of these three composites all become relatively smaller.
Journal ArticleDOI
Microstructure and tribological characteristics of needled C/C–SiC brake composites fabricated by simultaneous infiltration of molten Si and Cu
TL;DR: In order to reduce the wear rate of C/C-SiC brake composites at low brake speed, the authors in this paper proposed to use a mixture of molten Si and Cu.
Journal ArticleDOI
Tribological behavior of three-dimensional needled carbon/silicon carbide and carbon/carbon brake pair
TL;DR: In this paper, the static coefficient of friction (COF) of C/SiC-C/C pair has been investigated in dry, fresh water, sea water and static conditions.
Journal ArticleDOI
Formation mechanisms of characteristic structures on the surface of C/SiC composites subjected to thermal ablation
TL;DR: In this paper, C/SiC (carbon fiber reinforced silicon carbide) composites are subjected to thermal ablation at temperatures up to 1800°C and the surface evolution of the composites were recorded by using a high speed camera.
References
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Book ChapterDOI
Cost Effective Processing of CMC Composites by Melt Infiltration (LSI-Process)
TL;DR: In this article, a cost efficient manufacturing route has been developed by DLR based on the infiltration of a reactive fluid phase into porous carbon fiber preforms, where Molten silicon is used as the reactive fluid which replaces the initial pore volume of the preform and reacts subsequently with the carbon matrix to form silicon carbide.
Patent
Method of manufacturing a friction element
TL;DR: In this article, a method of manufacturing a friction element designed for frictional contact with a body and for use, in particular, in brakes or clutches was proposed. But the method called for a porous carbon block to be produced which approximately matched the shape of the end of the abrasion unit, liquid silicon was infiltrated into the pores of the carbon block and the block was ceramized by initiating a chemical reaction to form silicon carbide.
Proceedings ArticleDOI
Carbon/Carbon Friction Materials for Dry and Wet Brake and Clutch Applications
D. W. Gibson,C. J. Taccini +1 more
Liquid Infiltrated C/SiC : An Alternative Material for Hot Space Structures
Hermann Hald,Walter Krenkel +1 more
C/C-SiC Composites For High Performance Emergency Brake Systems
Ralph Renz,Walter Krenkel +1 more
TL;DR: In this article, the authors presented the successful development of new C/C-SiC composite materials for a commercial application by substituting conventional materials and the adaption of the brake system to the new requirements.
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C/C–SiC composites for space applications and advanced friction systems
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