| 학회 | 한국재료학회 |
| 학술대회 | 2021년 봄 (05/12 ~ 05/14, 광주 김대중컨벤션센터) |
| 권호 | 27권 1호 |
| 발표분야 | D. 구조 재료 분과 |
| 제목 | Wear analysis in PTFE/MoS2 composite cage for cryogenic ball bearings |
| 초록 | It was experimentally elucidate the mechanism of friction wear surface for the sliding and rolling contact movement in the cryogenic atmosphere. To evaluate the properties of the solid lubricating cage, we should minimize the frictional wear of the contact surface at a low temperature conditions. Investigations of wear resistance of polymers with additives, using the cryogenic pin-on-disk apparatus has been carried out. Normal load, rotating speed and liquid nitrogen flow rate were considered variables in the cryogenic wear tests. The friction and the wear mechanisms are briefly reviewed. Various polymeric materials containing solid lubricants were investigated. Cage center-of-mass orbits for cryogenic ball bearing with different solid lubricant are demonstrated. In the case of MoS2 containing composite cage, circular orbit is observed. Among the tested materials, the composites PTFE with additive MoS2 have shown good friction coefficient. |
| 저자 | 서우석, 이전국 |
| 소속 | 광전소재연구단 |
| 키워드 | Wear analysis; polymer composite cage; cryogenic ball bearing |
