| Autor: |
FAN Yong-zhong, YANG Chuang, CHEN He |
| Jazyk: |
čínština |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
Cailiao Baohu, Vol 56, Iss 1, Pp 98-103 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
1001-1560 |
| DOI: |
10.16577/j.issn.1001-1560.2023.0016 |
| Popis: |
In order to study the effects of C/C green body heat treatment temperature on the microstructure and friction properties of C/C-SiC composites, the C/C green body was prepared by chemical vapor infiltration(CVI) with needled carbon felt as preform, and then the C/C-SiC composites were prepared by reactive melt infiltration(RMI). Results showed that the high temperature heat treatment of C/C green body did not change the phase composition of C/C-SiC composites. The heat treatment temperature of C/C green body had certain influences on the friction and wear properties of C/C-SiC composites. Compared with a heat treatment at 1 800 ℃, the friction surface of C/C-SiC composites was easier to form a dense lubricating film after a heat treatment at 2 000 ℃ and 2 200 ℃, and the friction coefficient increased gradually. Besides, with the increase of braking times, the change of friction coefficient declined and the braking was stable. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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