세라믹 디스크의 표면개질에 따른 마찰 마모 특성Tribological properties of C-SiC brake with surface modifications
- Other Titles
- Tribological properties of C-SiC brake with surface modifications
- Authors
- 장호; 김기정; 황희정; 김성진; 박홍식
- Issue Date
- 2008
- Publisher
- 한국트라이볼로지학회
- Keywords
- ceramic disc; surface modification; friction; wear; brake
- Citation
- 한국트라이볼로지학회지, v.24, no.4, pp.163 - 169
- Indexed
- KCI
- Journal Title
- 한국트라이볼로지학회지
- Volume
- 24
- Number
- 4
- Start Page
- 163
- End Page
- 169
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/125220
- ISSN
- 2713-8011
- Abstract
- Tribological properties of ceramic brake discs were investigated using a commercial friction material. The discs were manufactured by liquid silicon infiltration (LSI) into a C-C preform. The disc surface was modified by two different methods, producing sliding surfaces with chopped carbon fibers and carbon felt. In addition, the composition of the surface was also changed. Friction characteristics of the discs were examined using a 1/5 scale dynamometer. Results showed that the type and composition of the disc surface significantly affected the level of braking effectiveness and high temperature brake performance. The discs with felt surfaces showed higher friction levels than those with chopped fiber surfaces and SiC tended to increase the friction level while C lowered the friction coefficient. The ceramic disc was more sensitive to the deceleration rate than gray iron, showing high speed sensitivity.
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Collections - College of Engineering > Department of Materials Science and Engineering > 1. Journal Articles
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