Frictional performance of C/C–SiC materials at high loads: The role of composition and third-body
Ceramic matrix composites like carbon fiber-reinforced silicon carbon (C/C–SiC) are brake materials for applications at high thermo-mechanical loads. This study investigates the influence of three C/C–SiC pad materials with different compositions on frictional performance. For this purpose, the cera...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-06-01
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| Series: | Open Ceramics |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666539523000366 |
| _version_ | 1797818264214044672 |
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| author | Stefan Flauder Nico Langhof Walter Krenkel Stefan Schafföner |
| author_facet | Stefan Flauder Nico Langhof Walter Krenkel Stefan Schafföner |
| author_sort | Stefan Flauder |
| collection | DOAJ |
| description | Ceramic matrix composites like carbon fiber-reinforced silicon carbon (C/C–SiC) are brake materials for applications at high thermo-mechanical loads. This study investigates the influence of three C/C–SiC pad materials with different compositions on frictional performance. For this purpose, the ceramic pad materials were tested against a steel disk on a dynamometer at brake pressures from 20 to 60 MPa. A large effect due to the different Si and SiC contents of the three pad materials on the frictional behavior was expected. Although the wear rates differed from 40 to 140 mm3/MJ, only marginal differences were found for the coefficient of friction. Hence, additional tests to interrupt and sequence the brake procedure revealed the formation of an intermediate metallic transfer layer from the steel disk on the ceramic pads. The formation and disappearance of this third-body, which was not found in start-complete-stop testing, and the consequences for the frictional properties are discussed. |
| first_indexed | 2024-03-13T09:05:30Z |
| format | Article |
| id | doaj.art-2b8909b3369647029db2521c2ce7e23a |
| institution | Directory Open Access Journal |
| issn | 2666-5395 |
| language | English |
| last_indexed | 2024-03-13T09:05:30Z |
| publishDate | 2023-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Open Ceramics |
| spelling | doaj.art-2b8909b3369647029db2521c2ce7e23a2023-05-28T04:09:23ZengElsevierOpen Ceramics2666-53952023-06-0114100364Frictional performance of C/C–SiC materials at high loads: The role of composition and third-bodyStefan Flauder0Nico Langhof1Walter Krenkel2Stefan Schafföner3Chair of Ceramic Materials Engineering (CME), University of Bayreuth, Prof.-Rüdiger-Bormann-Str. 1, 95447, Bayreuth, Germany; Corresponding author.Chair of Ceramic Materials Engineering (CME), University of Bayreuth, Prof.-Rüdiger-Bormann-Str. 1, 95447, Bayreuth, GermanyChair of Ceramic Materials Engineering (CME), University of Bayreuth, Prof.-Rüdiger-Bormann-Str. 1, 95447, Bayreuth, GermanyChair of Ceramic Materials Engineering (CME), University of Bayreuth, Prof.-Rüdiger-Bormann-Str. 1, 95447, Bayreuth, GermanyCeramic matrix composites like carbon fiber-reinforced silicon carbon (C/C–SiC) are brake materials for applications at high thermo-mechanical loads. This study investigates the influence of three C/C–SiC pad materials with different compositions on frictional performance. For this purpose, the ceramic pad materials were tested against a steel disk on a dynamometer at brake pressures from 20 to 60 MPa. A large effect due to the different Si and SiC contents of the three pad materials on the frictional behavior was expected. Although the wear rates differed from 40 to 140 mm3/MJ, only marginal differences were found for the coefficient of friction. Hence, additional tests to interrupt and sequence the brake procedure revealed the formation of an intermediate metallic transfer layer from the steel disk on the ceramic pads. The formation and disappearance of this third-body, which was not found in start-complete-stop testing, and the consequences for the frictional properties are discussed.http://www.sciencedirect.com/science/article/pii/S2666539523000366 |
| spellingShingle | Stefan Flauder Nico Langhof Walter Krenkel Stefan Schafföner Frictional performance of C/C–SiC materials at high loads: The role of composition and third-body Open Ceramics |
| title | Frictional performance of C/C–SiC materials at high loads: The role of composition and third-body |
| title_full | Frictional performance of C/C–SiC materials at high loads: The role of composition and third-body |
| title_fullStr | Frictional performance of C/C–SiC materials at high loads: The role of composition and third-body |
| title_full_unstemmed | Frictional performance of C/C–SiC materials at high loads: The role of composition and third-body |
| title_short | Frictional performance of C/C–SiC materials at high loads: The role of composition and third-body |
| title_sort | frictional performance of c c sic materials at high loads the role of composition and third body |
| url | http://www.sciencedirect.com/science/article/pii/S2666539523000366 |
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