The concept of isolated short C-fiber strands in a modified SiSiC matrix was transformed to a successful development of ceramic matrix composites (CMC) disk materials with increased friction properties compared with carbon-carbon composites and cast iron. The dense and oxidation resistant material shows advantageous crack absorbing mechanisms, so that an application of CMC with limited damage tolerance, as in passenger car disk brakes, can be taken into consideration. The results of tribological tests show, that an original anisotropy effect, depending on the preferred fiber orientation, disappears after a few hundred cycles so that asymptotic coincidence is observed.
Manufacturing and CMC-component development for brake disks in automotive applications
1999
8 Seiten, 17 Quellen
Aufsatz (Konferenz)
Englisch
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