고체 윤활제의 특성에 따른 반금속계 마찰재의 마찰 마모특성에 관한 연구
Tribological Properties of Semi-metallic Brake Friction Materials Containing Different Solid Lubricants: Graphite, WS2, and MoS2
2
조회
0
다운로드
1
인용
0
참고문헌
키워드
초록
Tribological properties of the semi-metallic friction materials containing different solid lubricants (graphite, WS2, MoS2) were investigated. The friction materials were fabricated with an experimental formulation and tested with gray cast iron disks. Results showed that graphite contributed to stabilize the friction coefficient during run-in processes. Also, graphite provided better fade resistance than that of WS2 and MoS2. At intermediate temperature ranges, however, friction materials with WS2 or MoS2 maintained higher friction effectiveness than that of graphite. On the other hand, friction materials containing MoS2 showed increased wear rates than that with graphite or WS2. Friction materials with proper combinations of two solid lubricants showed better friction and wear properties than that of the friction materials containing single solid lubricant.
Abstract
Tribological properties of the semi-metallic friction materials containing different solid lubricants (graphite, WS2, MoS2) were investigated. The friction materials were fabricated with an experimental formulation and tested with gray cast iron disks. Results showed that graphite contributed to stabilize the friction coefficient during run-in processes. Also, graphite provided better fade resistance than that of WS2 and MoS2. At intermediate temperature ranges, however, friction materials with WS2 or MoS2 maintained higher friction effectiveness than that of graphite. On the other hand, friction materials containing MoS2 showed increased wear rates than that with graphite or WS2. Friction materials with proper combinations of two solid lubricants showed better friction and wear properties than that of the friction materials containing single solid lubricant.
참고문헌 (11)
- M.H. Cho, "Tribological Properties of Solid Lubricants (Graphite, Sb2S3, MoS2) for Automotive Brake Friction Materials", Wear, 260, pp.855~860 (2006)
- M.G. Jacko, "Brake Linings and Clutch Facings. in: Kirk-othmer Encyclopedia of Chemical Tribology, Vol. 4, fourth ed", pp.523~536 (1992)
- T. Liu, "High Temperature Wear of Semimetallic Disc Brake Pads", Wear, 46, pp.213~218 (1978)
- J. Bijwe, "Influence of Modified Phenolic Resins on the Fade & Recovery Behavior of Friction Materials", Wear, 259, pp.1068~1078 (2005)
- S.J. Kim, "Synergistic Effects of Aramid Pulp and Potassium Titanate Whiskers in the Automotive Friction Materials", Wear, 251, pp.1484~1491 (2001)
- S.J. Kim, "Optimization of Manufacturing Parameters for a Brake Lining using Taguchi Method", Journal of Materials Processing technology, 136, pp.202~208 (2003)
- T.A. Libsch, "Microstructural Changes in Semimetallic Disc Brake Pads Created by Low Temperature Dynamometer Testing", Wear, 46, pp.203~212 (1978)
- G.W. Stachowiak, "Engineering Tribology", pp.411~416 (2001), Engineering Tribology
- Ernest Rabinowicz, "Friction and wear of materials: 2nd ed", pp.198~217 (1995), Wiley
- K.C. Wong, "Surface and Friction Characterization of MoS2 and WS2 Third Body thin Film under Simulated Wheel", rail Tolling-sliing Contact, 2008, pp.264, 526~534
- The Role of Raw Material Ingredients of Brake Linings on the Formation of Transfer Film and Friction Characteristics, "M.H. Cho", ~, pp.SAE Paper, No.2001-01-3130 (2001)