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
Accelerating the crosslinking process of hyperbranched polycarbosilane by UV irradiation
TL;DR: In this article, a liquid hyperbranched polycarbosilane (LHBPCS) with stoichiometric C/Si ratio but without unsaturated groups was synthesized.
Journal ArticleDOI
Effect of pyrocarbon content on thermal and frictional properties in C/C preforms of C/C–SiC composites
TL;DR: In this paper, the influence of phase composition (SiC, Si, and pyrocarbon) modification in the C/C-SiC composite on the thermal and friction behavior, and the related mechanisms was discussed.
Journal ArticleDOI
The Stability of the Coefficient of Friction and Wear Behavior of C/C–SiC
TL;DR: In this article, the brake friction properties of carbon fiber-reinforced silicon carbide (C/C-SiC) composites as brake pads and discs for high-speed trains were studied.
Journal ArticleDOI
Biological response of an in vitro human 3D lung cell model exposed to brake wear debris varies based on brake pad formulation.
Hana Barosova,Hana Barosova,Savvina Chortarea,Savvina Chortarea,Pavlína Peikertová,Martin J. D. Clift,Martin J. D. Clift,Alke Petri-Fink,Jana Kukutschová,Barbara Rothen-Rutishauser +9 more
TL;DR: Brake wear debris with low-metallic formula does not induce any adverse biological effects to the in vitro lung multicellular model, but brake wear particles from non-asbestos organic formulated pads induced increased (pro-)inflammatory mediator release from the same in vitro system.
Journal ArticleDOI
Microstructures and mechanical properties of 3D 4-directional, Cf/ZrC–SiC composites using ZrC precursor and polycarbosilane
TL;DR: In this paper, three-dimensional 4-directional C f /ZrC-SiC composites were successfully fabricated by polymer infiltration and pyrolysis combined with ZrC precursor impregnation.
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
Walter Krenkel,F. Berndt +1 more