Abstract

Within the frame work of the Centre of Excellence in Research CER 483 “High performance sliding and friction systems based on advanced ceramics” one approach is to apply advanced ceramics as friction material for e.g. a dry running motor vehicle clutch using the ceramic specific benefits as wear and temperature resistance combined with lightweight design to fulfill demands as e.g. functionality, life time and reliability. The improvement of the wear resistance of the clutch system is accomplished by special constructive cushion springs in the first prototype of a complete clutch system within the ceramic specific development process. The paper focuses on the experimental results as e.g. friction and wear behavior in different testing levels and the transferability of examined results between these. The aim is the holistic gathering of data concerning tribological characterization of the function relevant friction pairing as well as comfort and drivability relevant parameters. Exemplary, the average coefficient of friction as well as wear behaviour of Siliciumcarbid versus C45E is presented for ten city cycles (more than 1000 drive off synchronizations). Thus, by these analysis and evaluation the potential of advanced ceramics in the field of automotive clutch systems is shown regarding the todays demands.

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