Development of wear resistant ceramic coatings for diesel engine components. Final report
- Caterpillar, Inc., Peoria, IL (United States)
Improved fuel economy and a reduction of emissions can be achieved by insulation of the combustion chamber components to reduce heat rejection. However, insulating the combustion chamber components will also increase the operating temperature of the piston ring/cylinder liner interface from approximately 150{degree}C to over 300{degree}C. Existing ring/liner materials can not withstand these higher operating temperatures and for this reason, new materials need to be developed for this critical tribological interface. The overall goal of this program is the development of piston ring/cylinder liner material pairs which would be able to provide the required friction and wear properties at these more severe operating conditions. More specifically, this program first selected, and then evaluated, potential d/wear resistant coatings which could be applied to either piston rings an or cylinder liners and provide, at 350{degree}C under lubricated conditions, coefficients of friction below 0.1 and wear rates of less than 25 {times} lO{sup {minus}6} mm/hour. The processes selected for applying the candidate wear resistant coatings to piston rings and/or cylinder liners were plasma spraying, chemical vapor, physical vapor and low temperature arc vapor deposition techniques as well as enameling techniques.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Caterpillar, Inc., Peoria, IL (United States). Research Dept.
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 10167662
- Report Number(s):
- ORNL/Sub-87-SA582/1; ON: DE92019068
- Resource Relation:
- Other Information: PBD: Apr 1992
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
COATINGS
WEAR RESISTANCE
DIESEL ENGINES
CERAMICS
PHYSICAL VAPOR DEPOSITION
SPRAY COATING
PROGRESS REPORT
HEAT TRANSFER
THERMAL INSULATION
MICROSTRUCTURE
LUBRICATION
THERMAL SHOCK
OXIDATION
FRICTION
CHROMIUM OXIDES
ZIRCONIUM OXIDES
330102
360201
360203
360205
DIESEL
PREPARATION AND FABRICATION
MECHANICAL PROPERTIES
CORROSION AND EROSION